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Finding the Fourth Proportional to 99,600.92, 137,447.46 and 54,279.28

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Solution

The fourth proportional to 99,600.92, 137,447.46 and 54,279.28 is: 74,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,600.92 : 137,447.46 = 54,279.28 : x
  2. Step 2: Convert to fraction form
    99,600.92/137,447.46 = 54,279.28/x
  3. Step 3: Cross multiply
    99,600.92x = 137,447.46 × 54,279.28
  4. Step 4: Simplify right side
    99,600.92x = 7,460,549,166.63
  5. Step 5: Solve for x
    x = 7,460,549,166.63/99,600.92
  6. Step 6: Final answer
    x = 74,904.42

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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.