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Finding the Fourth Proportional to 65,068.88, 97,491.78 and 43,681.55

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Solution

The fourth proportional to 65,068.88, 97,491.78 and 43,681.55 is: 65,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,068.88 : 97,491.78 = 43,681.55 : x
  2. Step 2: Convert to fraction form
    65,068.88/97,491.78 = 43,681.55/x
  3. Step 3: Cross multiply
    65,068.88x = 97,491.78 × 43,681.55
  4. Step 4: Simplify right side
    65,068.88x = 4,258,591,575.20
  5. Step 5: Solve for x
    x = 4,258,591,575.20/65,068.88
  6. Step 6: Final answer
    x = 65,447.44

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1.5x scale

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.