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Finding the Fourth Proportional to 572,716.80, 859,172.40 and 173,354.40

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Solution

The fourth proportional to 572,716.80, 859,172.40 and 173,354.40 is: 260,061.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,716.80 : 859,172.40 = 173,354.40 : x
  2. Step 2: Convert to fraction form
    572,716.80/859,172.40 = 173,354.40/x
  3. Step 3: Cross multiply
    572,716.80x = 859,172.40 × 173,354.40
  4. Step 4: Simplify right side
    572,716.80x = 148,941,315,898.56
  5. Step 5: Solve for x
    x = 148,941,315,898.56/572,716.80
  6. Step 6: Final answer
    x = 260,061.02

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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.