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Finding the Fourth Proportional to 351,701.85, 527,445.05 and 127,034.58

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Solution

The fourth proportional to 351,701.85, 527,445.05 and 127,034.58 is: 190,512.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,701.85 : 527,445.05 = 127,034.58 : x
  2. Step 2: Convert to fraction form
    351,701.85/527,445.05 = 127,034.58/x
  3. Step 3: Cross multiply
    351,701.85x = 527,445.05 × 127,034.58
  4. Step 4: Simplify right side
    351,701.85x = 67,003,762,457.14
  5. Step 5: Solve for x
    x = 67,003,762,457.14/351,701.85
  6. Step 6: Final answer
    x = 190,512.96

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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.