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Finding the Fourth Proportional to 374,494.16, 561,719.28 and 108,248.78

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Solution

The fourth proportional to 374,494.16, 561,719.28 and 108,248.78 is: 162,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,494.16 : 561,719.28 = 108,248.78 : x
  2. Step 2: Convert to fraction form
    374,494.16/561,719.28 = 108,248.78/x
  3. Step 3: Cross multiply
    374,494.16x = 561,719.28 × 108,248.78
  4. Step 4: Simplify right side
    374,494.16x = 60,805,426,762.48
  5. Step 5: Solve for x
    x = 60,805,426,762.48/374,494.16
  6. Step 6: Final answer
    x = 162,366.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.