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Finding the Fourth Proportional to 117,328.60, 175,990.80 and 28,581.89

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Solution

The fourth proportional to 117,328.60, 175,990.80 and 28,581.89 is: 42,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,328.60 : 175,990.80 = 28,581.89 : x
  2. Step 2: Convert to fraction form
    117,328.60/175,990.80 = 28,581.89/x
  3. Step 3: Cross multiply
    117,328.60x = 175,990.80 × 28,581.89
  4. Step 4: Simplify right side
    117,328.60x = 5,030,149,686.61
  5. Step 5: Solve for x
    x = 5,030,149,686.61/117,328.60
  6. Step 6: Final answer
    x = 42,872.33

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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.