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Finding the Fourth Proportional to 91,158.66, 125,801.94 and 52,915.32

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Solution

The fourth proportional to 91,158.66, 125,801.94 and 52,915.32 is: 73,024.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,158.66 : 125,801.94 = 52,915.32 : x
  2. Step 2: Convert to fraction form
    91,158.66/125,801.94 = 52,915.32/x
  3. Step 3: Cross multiply
    91,158.66x = 125,801.94 × 52,915.32
  4. Step 4: Simplify right side
    91,158.66x = 6,656,849,911.72
  5. Step 5: Solve for x
    x = 6,656,849,911.72/91,158.66
  6. Step 6: Final answer
    x = 73,024.88

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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.