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Finding the Fourth Proportional to 207,008.30, 310,403.10 and 88,545.80

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Solution

The fourth proportional to 207,008.30, 310,403.10 and 88,545.80 is: 132,771.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,008.30 : 310,403.10 = 88,545.80 : x
  2. Step 2: Convert to fraction form
    207,008.30/310,403.10 = 88,545.80/x
  3. Step 3: Cross multiply
    207,008.30x = 310,403.10 × 88,545.80
  4. Step 4: Simplify right side
    207,008.30x = 27,484,890,811.98
  5. Step 5: Solve for x
    x = 27,484,890,811.98/207,008.30
  6. Step 6: Final answer
    x = 132,771.93

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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.