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Finding the Fourth Proportional to 156,750.95, 216,329.65 and 88,780.01

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Solution

The fourth proportional to 156,750.95, 216,329.65 and 88,780.01 is: 122,523.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.95 : 216,329.65 = 88,780.01 : x
  2. Step 2: Convert to fraction form
    156,750.95/216,329.65 = 88,780.01/x
  3. Step 3: Cross multiply
    156,750.95x = 216,329.65 × 88,780.01
  4. Step 4: Simplify right side
    156,750.95x = 19,205,748,162.65
  5. Step 5: Solve for x
    x = 19,205,748,162.65/156,750.95
  6. Step 6: Final answer
    x = 122,523.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.