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Finding the Fourth Proportional to 98,475.52, 135,895.68 and 53,763.20

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Solution

The fourth proportional to 98,475.52, 135,895.68 and 53,763.20 is: 74,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,475.52 : 135,895.68 = 53,763.20 : x
  2. Step 2: Convert to fraction form
    98,475.52/135,895.68 = 53,763.20/x
  3. Step 3: Cross multiply
    98,475.52x = 135,895.68 × 53,763.20
  4. Step 4: Simplify right side
    98,475.52x = 7,306,186,622.98
  5. Step 5: Solve for x
    x = 7,306,186,622.98/98,475.52
  6. Step 6: Final answer
    x = 74,192.92

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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.