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Finding the Fourth Proportional to 173,891.60, 260,491.80 and 99,933.20

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Solution

The fourth proportional to 173,891.60, 260,491.80 and 99,933.20 is: 149,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,891.60 : 260,491.80 = 99,933.20 : x
  2. Step 2: Convert to fraction form
    173,891.60/260,491.80 = 99,933.20/x
  3. Step 3: Cross multiply
    173,891.60x = 260,491.80 × 99,933.20
  4. Step 4: Simplify right side
    173,891.60x = 26,031,779,147.76
  5. Step 5: Solve for x
    x = 26,031,779,147.76/173,891.60
  6. Step 6: Final answer
    x = 149,701.19

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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.