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Finding the Fourth Proportional to 99,696, 149,543.96 and 29,574.70

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Solution

The fourth proportional to 99,696, 149,543.96 and 29,574.70 is: 44,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,696 : 149,543.96 = 29,574.70 : x
  2. Step 2: Convert to fraction form
    99,696/149,543.96 = 29,574.70/x
  3. Step 3: Cross multiply
    99,696x = 149,543.96 × 29,574.70
  4. Step 4: Simplify right side
    99,696x = 4,422,717,753.81
  5. Step 5: Solve for x
    x = 4,422,717,753.81/99,696
  6. Step 6: Final answer
    x = 44,362.04

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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.