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Finding the Fourth Proportional to 372,139.34, 558,124.92 and 105,893.96

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Solution

The fourth proportional to 372,139.34, 558,124.92 and 105,893.96 is: 158,817.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,139.34 : 558,124.92 = 105,893.96 : x
  2. Step 2: Convert to fraction form
    372,139.34/558,124.92 = 105,893.96/x
  3. Step 3: Cross multiply
    372,139.34x = 558,124.92 × 105,893.96
  4. Step 4: Simplify right side
    372,139.34x = 59,102,057,953.48
  5. Step 5: Solve for x
    x = 59,102,057,953.48/372,139.34
  6. Step 6: Final answer
    x = 158,817.01

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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.