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Finding the Fourth Proportional to 372,639.33, 559,052.15 and 147,925.49

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Solution

The fourth proportional to 372,639.33, 559,052.15 and 147,925.49 is: 221,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,639.33 : 559,052.15 = 147,925.49 : x
  2. Step 2: Convert to fraction form
    372,639.33/559,052.15 = 147,925.49/x
  3. Step 3: Cross multiply
    372,639.33x = 559,052.15 × 147,925.49
  4. Step 4: Simplify right side
    372,639.33x = 82,698,059,689.42
  5. Step 5: Solve for x
    x = 82,698,059,689.42/372,639.33
  6. Step 6: Final answer
    x = 221,925.20

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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.