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Finding the Fourth Proportional to 73,915.40, 110,840.70 and 29,527.40

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Solution

The fourth proportional to 73,915.40, 110,840.70 and 29,527.40 is: 44,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,915.40 : 110,840.70 = 29,527.40 : x
  2. Step 2: Convert to fraction form
    73,915.40/110,840.70 = 29,527.40/x
  3. Step 3: Cross multiply
    73,915.40x = 110,840.70 × 29,527.40
  4. Step 4: Simplify right side
    73,915.40x = 3,272,837,685.18
  5. Step 5: Solve for x
    x = 3,272,837,685.18/73,915.40
  6. Step 6: Final answer
    x = 44,278.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.