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Finding the Fourth Proportional to 99,724.98, 149,543.64 and 37,351.74

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Solution

The fourth proportional to 99,724.98, 149,543.64 and 37,351.74 is: 56,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,724.98 : 149,543.64 = 37,351.74 : x
  2. Step 2: Convert to fraction form
    99,724.98/149,543.64 = 37,351.74/x
  3. Step 3: Cross multiply
    99,724.98x = 149,543.64 × 37,351.74
  4. Step 4: Simplify right side
    99,724.98x = 5,585,715,159.93
  5. Step 5: Solve for x
    x = 5,585,715,159.93/99,724.98
  6. Step 6: Final answer
    x = 56,011.19

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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.