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Finding the Fourth Proportional to 148,748, 205,251.58 and 87,496.96

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Solution

The fourth proportional to 148,748, 205,251.58 and 87,496.96 is: 120,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,748 : 205,251.58 = 87,496.96 : x
  2. Step 2: Convert to fraction form
    148,748/205,251.58 = 87,496.96/x
  3. Step 3: Cross multiply
    148,748x = 205,251.58 × 87,496.96
  4. Step 4: Simplify right side
    148,748x = 17,958,889,285.20
  5. Step 5: Solve for x
    x = 17,958,889,285.20/148,748
  6. Step 6: Final answer
    x = 120,733.65

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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.