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Finding the Fourth Proportional to 94,010.90, 129,689.60 and 61,732.91

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Solution

The fourth proportional to 94,010.90, 129,689.60 and 61,732.91 is: 85,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,010.90 : 129,689.60 = 61,732.91 : x
  2. Step 2: Convert to fraction form
    94,010.90/129,689.60 = 61,732.91/x
  3. Step 3: Cross multiply
    94,010.90x = 129,689.60 × 61,732.91
  4. Step 4: Simplify right side
    94,010.90x = 8,006,116,420.30
  5. Step 5: Solve for x
    x = 8,006,116,420.30/94,010.90
  6. Step 6: Final answer
    x = 85,161.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.