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Finding the Fourth Proportional to 83,693.64, 115,496.70 and 50,159.64

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Solution

The fourth proportional to 83,693.64, 115,496.70 and 50,159.64 is: 69,219.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,693.64 : 115,496.70 = 50,159.64 : x
  2. Step 2: Convert to fraction form
    83,693.64/115,496.70 = 50,159.64/x
  3. Step 3: Cross multiply
    83,693.64x = 115,496.70 × 50,159.64
  4. Step 4: Simplify right side
    83,693.64x = 5,793,272,893.19
  5. Step 5: Solve for x
    x = 5,793,272,893.19/83,693.64
  6. Step 6: Final answer
    x = 69,219.99

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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.