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Finding the Fourth Proportional to 98,557.92, 147,895.20 and 36,272.16

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Solution

The fourth proportional to 98,557.92, 147,895.20 and 36,272.16 is: 54,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,557.92 : 147,895.20 = 36,272.16 : x
  2. Step 2: Convert to fraction form
    98,557.92/147,895.20 = 36,272.16/x
  3. Step 3: Cross multiply
    98,557.92x = 147,895.20 × 36,272.16
  4. Step 4: Simplify right side
    98,557.92x = 5,364,478,357.63
  5. Step 5: Solve for x
    x = 5,364,478,357.63/98,557.92
  6. Step 6: Final answer
    x = 54,429.70

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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.