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Finding the Fourth Proportional to 124,858.10, 187,404.60 and 65,736.20

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Solution

The fourth proportional to 124,858.10, 187,404.60 and 65,736.20 is: 98,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,858.10 : 187,404.60 = 65,736.20 : x
  2. Step 2: Convert to fraction form
    124,858.10/187,404.60 = 65,736.20/x
  3. Step 3: Cross multiply
    124,858.10x = 187,404.60 × 65,736.20
  4. Step 4: Simplify right side
    124,858.10x = 12,319,266,266.52
  5. Step 5: Solve for x
    x = 12,319,266,266.52/124,858.10
  6. Step 6: Final answer
    x = 98,666.14

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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.