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Finding the Fourth Proportional to 70,407.52, 97,162.58 and 38,142.46

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Solution

The fourth proportional to 70,407.52, 97,162.58 and 38,142.46 is: 52,636.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.52 : 97,162.58 = 38,142.46 : x
  2. Step 2: Convert to fraction form
    70,407.52/97,162.58 = 38,142.46/x
  3. Step 3: Cross multiply
    70,407.52x = 97,162.58 × 38,142.46
  4. Step 4: Simplify right side
    70,407.52x = 3,706,020,037.96
  5. Step 5: Solve for x
    x = 3,706,020,037.96/70,407.52
  6. Step 6: Final answer
    x = 52,636.71

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