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Finding the Fourth Proportional to 370,463.68, 555,695.52 and 89,979.04

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Solution

The fourth proportional to 370,463.68, 555,695.52 and 89,979.04 is: 134,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,463.68 : 555,695.52 = 89,979.04 : x
  2. Step 2: Convert to fraction form
    370,463.68/555,695.52 = 89,979.04/x
  3. Step 3: Cross multiply
    370,463.68x = 555,695.52 × 89,979.04
  4. Step 4: Simplify right side
    370,463.68x = 50,000,949,421.90
  5. Step 5: Solve for x
    x = 50,000,949,421.90/370,463.68
  6. Step 6: Final answer
    x = 134,968.56

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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.