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Finding the Fourth Proportional to 70,318.83, 97,040.00 and 38,487.74

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Solution

The fourth proportional to 70,318.83, 97,040.00 and 38,487.74 is: 53,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,318.83 : 97,040.00 = 38,487.74 : x
  2. Step 2: Convert to fraction form
    70,318.83/97,040.00 = 38,487.74/x
  3. Step 3: Cross multiply
    70,318.83x = 97,040.00 × 38,487.74
  4. Step 4: Simplify right side
    70,318.83x = 3,734,849,611.96
  5. Step 5: Solve for x
    x = 3,734,849,611.96/70,318.83
  6. Step 6: Final answer
    x = 53,113.08

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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.