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Finding the Fourth Proportional to 95,699.80, 143,549.70 and 29,139.40

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Solution

The fourth proportional to 95,699.80, 143,549.70 and 29,139.40 is: 43,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,699.80 : 143,549.70 = 29,139.40 : x
  2. Step 2: Convert to fraction form
    95,699.80/143,549.70 = 29,139.40/x
  3. Step 3: Cross multiply
    95,699.80x = 143,549.70 × 29,139.40
  4. Step 4: Simplify right side
    95,699.80x = 4,182,952,128.18
  5. Step 5: Solve for x
    x = 4,182,952,128.18/95,699.80
  6. Step 6: Final answer
    x = 43,709.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.