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Finding the Fourth Proportional to 70,807.13, 97,702.41 and 40,586.89

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Solution

The fourth proportional to 70,807.13, 97,702.41 and 40,586.89 is: 56,003.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,807.13 : 97,702.41 = 40,586.89 : x
  2. Step 2: Convert to fraction form
    70,807.13/97,702.41 = 40,586.89/x
  3. Step 3: Cross multiply
    70,807.13x = 97,702.41 × 40,586.89
  4. Step 4: Simplify right side
    70,807.13x = 3,965,436,764.47
  5. Step 5: Solve for x
    x = 3,965,436,764.47/70,807.13
  6. Step 6: Final answer
    x = 56,003.35

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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.