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Finding the Fourth Proportional to 100,046.74, 138,107.01 and 62,339.62

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Solution

The fourth proportional to 100,046.74, 138,107.01 and 62,339.62 is: 86,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,046.74 : 138,107.01 = 62,339.62 : x
  2. Step 2: Convert to fraction form
    100,046.74/138,107.01 = 62,339.62/x
  3. Step 3: Cross multiply
    100,046.74x = 138,107.01 × 62,339.62
  4. Step 4: Simplify right side
    100,046.74x = 8,609,538,522.74
  5. Step 5: Solve for x
    x = 8,609,538,522.74/100,046.74
  6. Step 6: Final answer
    x = 86,055.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.