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Finding the Fourth Proportional to 581,620.80, 872,431.16 and 160,885.72

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Solution

The fourth proportional to 581,620.80, 872,431.16 and 160,885.72 is: 241,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,620.80 : 872,431.16 = 160,885.72 : x
  2. Step 2: Convert to fraction form
    581,620.80/872,431.16 = 160,885.72/x
  3. Step 3: Cross multiply
    581,620.80x = 872,431.16 × 160,885.72
  4. Step 4: Simplify right side
    581,620.80x = 140,361,715,327.04
  5. Step 5: Solve for x
    x = 140,361,715,327.04/581,620.80
  6. Step 6: Final answer
    x = 241,328.57

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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.