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Finding the Fourth Proportional to 372,143.06, 558,214.53 and 109,487.06

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Solution

The fourth proportional to 372,143.06, 558,214.53 and 109,487.06 is: 164,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,143.06 : 558,214.53 = 109,487.06 : x
  2. Step 2: Convert to fraction form
    372,143.06/558,214.53 = 109,487.06/x
  3. Step 3: Cross multiply
    372,143.06x = 558,214.53 × 109,487.06
  4. Step 4: Simplify right side
    372,143.06x = 61,117,267,738.98
  5. Step 5: Solve for x
    x = 61,117,267,738.98/372,143.06
  6. Step 6: Final answer
    x = 164,230.57

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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.