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Finding the Fourth Proportional to 432,686.61, 649,030.35 and 112,838.24

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Solution

The fourth proportional to 432,686.61, 649,030.35 and 112,838.24 is: 169,257.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,686.61 : 649,030.35 = 112,838.24 : x
  2. Step 2: Convert to fraction form
    432,686.61/649,030.35 = 112,838.24/x
  3. Step 3: Cross multiply
    432,686.61x = 649,030.35 × 112,838.24
  4. Step 4: Simplify right side
    432,686.61x = 73,235,442,400.58
  5. Step 5: Solve for x
    x = 73,235,442,400.58/432,686.61
  6. Step 6: Final answer
    x = 169,257.47

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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.