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Finding the Fourth Proportional to 342,764.21, 514,140.80 and 93,446.21

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Solution

The fourth proportional to 342,764.21, 514,140.80 and 93,446.21 is: 140,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,764.21 : 514,140.80 = 93,446.21 : x
  2. Step 2: Convert to fraction form
    342,764.21/514,140.80 = 93,446.21/x
  3. Step 3: Cross multiply
    342,764.21x = 514,140.80 × 93,446.21
  4. Step 4: Simplify right side
    342,764.21x = 48,044,506,595.66
  5. Step 5: Solve for x
    x = 48,044,506,595.66/342,764.21
  6. Step 6: Final answer
    x = 140,167.81

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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.