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Finding the Fourth Proportional to 92,479.55, 127,621.85 and 64,201.64

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Solution

The fourth proportional to 92,479.55, 127,621.85 and 64,201.64 is: 88,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,479.55 : 127,621.85 = 64,201.64 : x
  2. Step 2: Convert to fraction form
    92,479.55/127,621.85 = 64,201.64/x
  3. Step 3: Cross multiply
    92,479.55x = 127,621.85 × 64,201.64
  4. Step 4: Simplify right side
    92,479.55x = 8,193,531,110.72
  5. Step 5: Solve for x
    x = 8,193,531,110.72/92,479.55
  6. Step 6: Final answer
    x = 88,598.31

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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.