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Finding the Fourth Proportional to 115,575.40, 173,387.40 and 65,614.60

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Solution

The fourth proportional to 115,575.40, 173,387.40 and 65,614.60 is: 98,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,575.40 : 173,387.40 = 65,614.60 : x
  2. Step 2: Convert to fraction form
    115,575.40/173,387.40 = 65,614.60/x
  3. Step 3: Cross multiply
    115,575.40x = 173,387.40 × 65,614.60
  4. Step 4: Simplify right side
    115,575.40x = 11,376,744,896.04
  5. Step 5: Solve for x
    x = 11,376,744,896.04/115,575.40
  6. Step 6: Final answer
    x = 98,435.70

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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.