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Finding the Fourth Proportional to 384,981.12, 577,471.52 and 104,539.52

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Solution

The fourth proportional to 384,981.12, 577,471.52 and 104,539.52 is: 156,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,981.12 : 577,471.52 = 104,539.52 : x
  2. Step 2: Convert to fraction form
    384,981.12/577,471.52 = 104,539.52/x
  3. Step 3: Cross multiply
    384,981.12x = 577,471.52 × 104,539.52
  4. Step 4: Simplify right side
    384,981.12x = 60,368,595,514.47
  5. Step 5: Solve for x
    x = 60,368,595,514.47/384,981.12
  6. Step 6: Final answer
    x = 156,809.24

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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.