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Finding the Fourth Proportional to 102,017,694.80, 143,127,103.60 and 102,017,694.80

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Solution

The fourth proportional to 102,017,694.80, 143,127,103.60 and 102,017,694.80 is: 143,127,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,017,694.80 : 143,127,103.60 = 102,017,694.80 : x
  2. Step 2: Convert to fraction form
    102,017,694.80/143,127,103.60 = 102,017,694.80/x
  3. Step 3: Cross multiply
    102,017,694.80x = 143,127,103.60 × 102,017,694.80
  4. Step 4: Simplify right side
    102,017,694.80x = 14,601,497,172,672,780
  5. Step 5: Solve for x
    x = 14,601,497,172,672,780/102,017,694.80
  6. Step 6: Final answer
    x = 143,127,103.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.