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Finding the Fourth Proportional to 99,224.52, 136,931.10 and 53,902.68

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Solution

The fourth proportional to 99,224.52, 136,931.10 and 53,902.68 is: 74,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,224.52 : 136,931.10 = 53,902.68 : x
  2. Step 2: Convert to fraction form
    99,224.52/136,931.10 = 53,902.68/x
  3. Step 3: Cross multiply
    99,224.52x = 136,931.10 × 53,902.68
  4. Step 4: Simplify right side
    99,224.52x = 7,380,953,265.35
  5. Step 5: Solve for x
    x = 7,380,953,265.35/99,224.52
  6. Step 6: Final answer
    x = 74,386.38

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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.