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Finding the Fourth Proportional to 92,738.34, 139,117.72 and 29,543.76

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Solution

The fourth proportional to 92,738.34, 139,117.72 and 29,543.76 is: 44,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,738.34 : 139,117.72 = 29,543.76 : x
  2. Step 2: Convert to fraction form
    92,738.34/139,117.72 = 29,543.76/x
  3. Step 3: Cross multiply
    92,738.34x = 139,117.72 × 29,543.76
  4. Step 4: Simplify right side
    92,738.34x = 4,110,060,531.43
  5. Step 5: Solve for x
    x = 4,110,060,531.43/92,738.34
  6. Step 6: Final answer
    x = 44,318.89

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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.