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Finding the Fourth Proportional to 573,121.80, 859,689.90 and 173,766.60

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Solution

The fourth proportional to 573,121.80, 859,689.90 and 173,766.60 is: 260,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,121.80 : 859,689.90 = 173,766.60 : x
  2. Step 2: Convert to fraction form
    573,121.80/859,689.90 = 173,766.60/x
  3. Step 3: Cross multiply
    573,121.80x = 859,689.90 × 173,766.60
  4. Step 4: Simplify right side
    573,121.80x = 149,385,390,977.34
  5. Step 5: Solve for x
    x = 149,385,390,977.34/573,121.80
  6. Step 6: Final answer
    x = 260,652.08

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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.