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Finding the Fourth Proportional to 85,597.59, 118,124.60 and 47,871.75

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Solution

The fourth proportional to 85,597.59, 118,124.60 and 47,871.75 is: 66,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.59 : 118,124.60 = 47,871.75 : x
  2. Step 2: Convert to fraction form
    85,597.59/118,124.60 = 47,871.75/x
  3. Step 3: Cross multiply
    85,597.59x = 118,124.60 × 47,871.75
  4. Step 4: Simplify right side
    85,597.59x = 5,654,831,080.69
  5. Step 5: Solve for x
    x = 5,654,831,080.69/85,597.59
  6. Step 6: Final answer
    x = 66,062.97

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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.