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Finding the Fourth Proportional to 173,669.40, 260,479.80 and 55,352.70

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Solution

The fourth proportional to 173,669.40, 260,479.80 and 55,352.70 is: 83,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,669.40 : 260,479.80 = 55,352.70 : x
  2. Step 2: Convert to fraction form
    173,669.40/260,479.80 = 55,352.70/x
  3. Step 3: Cross multiply
    173,669.40x = 260,479.80 × 55,352.70
  4. Step 4: Simplify right side
    173,669.40x = 14,418,260,225.46
  5. Step 5: Solve for x
    x = 14,418,260,225.46/173,669.40
  6. Step 6: Final answer
    x = 83,021.30

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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.