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Finding the Fourth Proportional to 372,140.34, 558,126.42 and 105,894.96

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Solution

The fourth proportional to 372,140.34, 558,126.42 and 105,894.96 is: 158,818.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,140.34 : 558,126.42 = 105,894.96 : x
  2. Step 2: Convert to fraction form
    372,140.34/558,126.42 = 105,894.96/x
  3. Step 3: Cross multiply
    372,140.34x = 558,126.42 × 105,894.96
  4. Step 4: Simplify right side
    372,140.34x = 59,102,774,920.84
  5. Step 5: Solve for x
    x = 59,102,774,920.84/372,140.34
  6. Step 6: Final answer
    x = 158,818.51

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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.