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Finding the Fourth Proportional to 70,892.74, 97,743.27 and 45,357.22

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Solution

The fourth proportional to 70,892.74, 97,743.27 and 45,357.22 is: 62,536.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892.74 : 97,743.27 = 45,357.22 : x
  2. Step 2: Convert to fraction form
    70,892.74/97,743.27 = 45,357.22/x
  3. Step 3: Cross multiply
    70,892.74x = 97,743.27 × 45,357.22
  4. Step 4: Simplify right side
    70,892.74x = 4,433,363,000.91
  5. Step 5: Solve for x
    x = 4,433,363,000.91/70,892.74
  6. Step 6: Final answer
    x = 62,536.21

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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.