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Finding the Fourth Proportional to 99,572.56, 137,460.91 and 67,476.74

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Solution

The fourth proportional to 99,572.56, 137,460.91 and 67,476.74 is: 93,152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,572.56 : 137,460.91 = 67,476.74 : x
  2. Step 2: Convert to fraction form
    99,572.56/137,460.91 = 67,476.74/x
  3. Step 3: Cross multiply
    99,572.56x = 137,460.91 × 67,476.74
  4. Step 4: Simplify right side
    99,572.56x = 9,275,413,059.55
  5. Step 5: Solve for x
    x = 9,275,413,059.55/99,572.56
  6. Step 6: Final answer
    x = 93,152.31

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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.