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Finding the Fourth Proportional to 535,639.47, 803,511.06 and 156,551.68

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Solution

The fourth proportional to 535,639.47, 803,511.06 and 156,551.68 is: 234,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,639.47 : 803,511.06 = 156,551.68 : x
  2. Step 2: Convert to fraction form
    535,639.47/803,511.06 = 156,551.68/x
  3. Step 3: Cross multiply
    535,639.47x = 803,511.06 × 156,551.68
  4. Step 4: Simplify right side
    535,639.47x = 125,791,006,341.58
  5. Step 5: Solve for x
    x = 125,791,006,341.58/535,639.47
  6. Step 6: Final answer
    x = 234,842.68

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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.