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Finding the Fourth Proportional to 207,129.42, 310,694.04 and 88,723.98

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Solution

The fourth proportional to 207,129.42, 310,694.04 and 88,723.98 is: 133,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,129.42 : 310,694.04 = 88,723.98 : x
  2. Step 2: Convert to fraction form
    207,129.42/310,694.04 = 88,723.98/x
  3. Step 3: Cross multiply
    207,129.42x = 310,694.04 × 88,723.98
  4. Step 4: Simplify right side
    207,129.42x = 27,566,011,791.08
  5. Step 5: Solve for x
    x = 27,566,011,791.08/207,129.42
  6. Step 6: Final answer
    x = 133,085.93

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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.