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Finding the Fourth Proportional to 111,641.76, 167,390.28 and 59,076

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Solution

The fourth proportional to 111,641.76, 167,390.28 and 59,076 is: 88,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,641.76 : 167,390.28 = 59,076 : x
  2. Step 2: Convert to fraction form
    111,641.76/167,390.28 = 59,076/x
  3. Step 3: Cross multiply
    111,641.76x = 167,390.28 × 59,076
  4. Step 4: Simplify right side
    111,641.76x = 9,888,748,181.28
  5. Step 5: Solve for x
    x = 9,888,748,181.28/111,641.76
  6. Step 6: Final answer
    x = 88,575.71

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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.