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Finding the Fourth Proportional to 84,817.70, 118,900.30 and 84,817.70

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Solution

The fourth proportional to 84,817.70, 118,900.30 and 84,817.70 is: 118,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,817.70 : 118,900.30 = 84,817.70 : x
  2. Step 2: Convert to fraction form
    84,817.70/118,900.30 = 84,817.70/x
  3. Step 3: Cross multiply
    84,817.70x = 118,900.30 × 84,817.70
  4. Step 4: Simplify right side
    84,817.70x = 10,084,849,975.31
  5. Step 5: Solve for x
    x = 10,084,849,975.31/84,817.70
  6. Step 6: Final answer
    x = 118,900.30

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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.