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Finding the Fourth Proportional to 373,721.61, 560,249.10 and 137,009.10

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Solution

The fourth proportional to 373,721.61, 560,249.10 and 137,009.10 is: 205,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,721.61 : 560,249.10 = 137,009.10 : x
  2. Step 2: Convert to fraction form
    373,721.61/560,249.10 = 137,009.10/x
  3. Step 3: Cross multiply
    373,721.61x = 560,249.10 × 137,009.10
  4. Step 4: Simplify right side
    373,721.61x = 76,759,224,966.81
  5. Step 5: Solve for x
    x = 76,759,224,966.81/373,721.61
  6. Step 6: Final answer
    x = 205,391.45

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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.