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Finding the Fourth Proportional to 121,250.61, 167,325.87 and 70,292.87

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Solution

The fourth proportional to 121,250.61, 167,325.87 and 70,292.87 is: 97,004.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,250.61 : 167,325.87 = 70,292.87 : x
  2. Step 2: Convert to fraction form
    121,250.61/167,325.87 = 70,292.87/x
  3. Step 3: Cross multiply
    121,250.61x = 167,325.87 × 70,292.87
  4. Step 4: Simplify right side
    121,250.61x = 11,761,815,276.08
  5. Step 5: Solve for x
    x = 11,761,815,276.08/121,250.61
  6. Step 6: Final answer
    x = 97,004.18

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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.