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Finding the Fourth Proportional to 372,294.54, 558,434.61 and 106,056.78

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Solution

The fourth proportional to 372,294.54, 558,434.61 and 106,056.78 is: 159,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,294.54 : 558,434.61 = 106,056.78 : x
  2. Step 2: Convert to fraction form
    372,294.54/558,434.61 = 106,056.78/x
  3. Step 3: Cross multiply
    372,294.54x = 558,434.61 × 106,056.78
  4. Step 4: Simplify right side
    372,294.54x = 59,225,776,577.16
  5. Step 5: Solve for x
    x = 59,225,776,577.16/372,294.54
  6. Step 6: Final answer
    x = 159,083.12

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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.