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Finding the Fourth Proportional to 71,440.55, 98,543.39 and 45,980.22

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Solution

The fourth proportional to 71,440.55, 98,543.39 and 45,980.22 is: 63,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,440.55 : 98,543.39 = 45,980.22 : x
  2. Step 2: Convert to fraction form
    71,440.55/98,543.39 = 45,980.22/x
  3. Step 3: Cross multiply
    71,440.55x = 98,543.39 × 45,980.22
  4. Step 4: Simplify right side
    71,440.55x = 4,531,046,891.38
  5. Step 5: Solve for x
    x = 4,531,046,891.38/71,440.55
  6. Step 6: Final answer
    x = 63,424.02

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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.