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Finding the Fourth Proportional to 94,140.80, 141,211.20 and 56,743.10

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Solution

The fourth proportional to 94,140.80, 141,211.20 and 56,743.10 is: 85,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,140.80 : 141,211.20 = 56,743.10 : x
  2. Step 2: Convert to fraction form
    94,140.80/141,211.20 = 56,743.10/x
  3. Step 3: Cross multiply
    94,140.80x = 141,211.20 × 56,743.10
  4. Step 4: Simplify right side
    94,140.80x = 8,012,761,242.72
  5. Step 5: Solve for x
    x = 8,012,761,242.72/94,140.80
  6. Step 6: Final answer
    x = 85,114.65

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1.5x scale

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.