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Finding the Fourth Proportional to 253,515.60, 349,854.12 and 140,335.92

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Solution

The fourth proportional to 253,515.60, 349,854.12 and 140,335.92 is: 193,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,515.60 : 349,854.12 = 140,335.92 : x
  2. Step 2: Convert to fraction form
    253,515.60/349,854.12 = 140,335.92/x
  3. Step 3: Cross multiply
    253,515.60x = 349,854.12 × 140,335.92
  4. Step 4: Simplify right side
    253,515.60x = 49,097,099,795.99
  5. Step 5: Solve for x
    x = 49,097,099,795.99/253,515.60
  6. Step 6: Final answer
    x = 193,665.00

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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.