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Finding the Fourth Proportional to 372,230.10, 558,345.15 and 105,999.30

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Solution

The fourth proportional to 372,230.10, 558,345.15 and 105,999.30 is: 158,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,230.10 : 558,345.15 = 105,999.30 : x
  2. Step 2: Convert to fraction form
    372,230.10/558,345.15 = 105,999.30/x
  3. Step 3: Cross multiply
    372,230.10x = 558,345.15 × 105,999.30
  4. Step 4: Simplify right side
    372,230.10x = 59,184,195,058.40
  5. Step 5: Solve for x
    x = 59,184,195,058.40/372,230.10
  6. Step 6: Final answer
    x = 158,998.95

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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.