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Finding the Fourth Proportional to 191,014.76, 286,531.65 and 72,695.27

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Solution

The fourth proportional to 191,014.76, 286,531.65 and 72,695.27 is: 109,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,014.76 : 286,531.65 = 72,695.27 : x
  2. Step 2: Convert to fraction form
    191,014.76/286,531.65 = 72,695.27/x
  3. Step 3: Cross multiply
    191,014.76x = 286,531.65 × 72,695.27
  4. Step 4: Simplify right side
    191,014.76x = 20,829,494,227.64
  5. Step 5: Solve for x
    x = 20,829,494,227.64/191,014.76
  6. Step 6: Final answer
    x = 109,046.52

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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.