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Finding the Fourth Proportional to 117,110.76, 175,639.87 and 53,870.15

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Solution

The fourth proportional to 117,110.76, 175,639.87 and 53,870.15 is: 80,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,110.76 : 175,639.87 = 53,870.15 : x
  2. Step 2: Convert to fraction form
    117,110.76/175,639.87 = 53,870.15/x
  3. Step 3: Cross multiply
    117,110.76x = 175,639.87 × 53,870.15
  4. Step 4: Simplify right side
    117,110.76x = 9,461,744,995.33
  5. Step 5: Solve for x
    x = 9,461,744,995.33/117,110.76
  6. Step 6: Final answer
    x = 80,793.13

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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.