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Finding the Fourth Proportional to 94,156.56, 129,934.62 and 53,880.21

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Solution

The fourth proportional to 94,156.56, 129,934.62 and 53,880.21 is: 74,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,156.56 : 129,934.62 = 53,880.21 : x
  2. Step 2: Convert to fraction form
    94,156.56/129,934.62 = 53,880.21/x
  3. Step 3: Cross multiply
    94,156.56x = 129,934.62 × 53,880.21
  4. Step 4: Simplify right side
    94,156.56x = 7,000,904,611.87
  5. Step 5: Solve for x
    x = 7,000,904,611.87/94,156.56
  6. Step 6: Final answer
    x = 74,353.87

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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.