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Finding the Fourth Proportional to 70,507.80, 97,281.36 and 45,371.88

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Solution

The fourth proportional to 70,507.80, 97,281.36 and 45,371.88 is: 62,600.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,507.80 : 97,281.36 = 45,371.88 : x
  2. Step 2: Convert to fraction form
    70,507.80/97,281.36 = 45,371.88/x
  3. Step 3: Cross multiply
    70,507.80x = 97,281.36 × 45,371.88
  4. Step 4: Simplify right side
    70,507.80x = 4,413,838,192.16
  5. Step 5: Solve for x
    x = 4,413,838,192.16/70,507.80
  6. Step 6: Final answer
    x = 62,600.71

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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.