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Finding the Fourth Proportional to 239,389.80, 359,151.12 and 104,465.64

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Solution

The fourth proportional to 239,389.80, 359,151.12 and 104,465.64 is: 156,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,389.80 : 359,151.12 = 104,465.64 : x
  2. Step 2: Convert to fraction form
    239,389.80/359,151.12 = 104,465.64/x
  3. Step 3: Cross multiply
    239,389.80x = 359,151.12 × 104,465.64
  4. Step 4: Simplify right side
    239,389.80x = 37,518,951,607.52
  5. Step 5: Solve for x
    x = 37,518,951,607.52/239,389.80
  6. Step 6: Final answer
    x = 156,727.44

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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.