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Finding the Fourth Proportional to 148,367.52, 204,714.81 and 87,907.95

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Solution

The fourth proportional to 148,367.52, 204,714.81 and 87,907.95 is: 121,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,367.52 : 204,714.81 = 87,907.95 : x
  2. Step 2: Convert to fraction form
    148,367.52/204,714.81 = 87,907.95/x
  3. Step 3: Cross multiply
    148,367.52x = 204,714.81 × 87,907.95
  4. Step 4: Simplify right side
    148,367.52x = 17,996,059,281.74
  5. Step 5: Solve for x
    x = 17,996,059,281.74/148,367.52
  6. Step 6: Final answer
    x = 121,293.79

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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.