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Finding the Fourth Proportional to 85,901.46, 118,543.53 and 47,660.64

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Solution

The fourth proportional to 85,901.46, 118,543.53 and 47,660.64 is: 65,771.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,901.46 : 118,543.53 = 47,660.64 : x
  2. Step 2: Convert to fraction form
    85,901.46/118,543.53 = 47,660.64/x
  3. Step 3: Cross multiply
    85,901.46x = 118,543.53 × 47,660.64
  4. Step 4: Simplify right side
    85,901.46x = 5,649,860,507.66
  5. Step 5: Solve for x
    x = 5,649,860,507.66/85,901.46
  6. Step 6: Final answer
    x = 65,771.41

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1.5x scale

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.