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Finding the Fourth Proportional to 121,226.52, 167,307.88 and 73,473.78

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Solution

The fourth proportional to 121,226.52, 167,307.88 and 73,473.78 is: 101,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,226.52 : 167,307.88 = 73,473.78 : x
  2. Step 2: Convert to fraction form
    121,226.52/167,307.88 = 73,473.78/x
  3. Step 3: Cross multiply
    121,226.52x = 167,307.88 × 73,473.78
  4. Step 4: Simplify right side
    121,226.52x = 12,292,742,948.87
  5. Step 5: Solve for x
    x = 12,292,742,948.87/121,226.52
  6. Step 6: Final answer
    x = 101,403.08

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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.