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Finding the Fourth Proportional to 115,988.95, 160,062.13 and 67,587.85

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Solution

The fourth proportional to 115,988.95, 160,062.13 and 67,587.85 is: 93,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,988.95 : 160,062.13 = 67,587.85 : x
  2. Step 2: Convert to fraction form
    115,988.95/160,062.13 = 67,587.85/x
  3. Step 3: Cross multiply
    115,988.95x = 160,062.13 × 67,587.85
  4. Step 4: Simplify right side
    115,988.95x = 10,818,254,664.00
  5. Step 5: Solve for x
    x = 10,818,254,664.00/115,988.95
  6. Step 6: Final answer
    x = 93,269.70

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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.