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Finding the Fourth Proportional to 207,092.64, 310,560.24 and 66,830.24

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Solution

The fourth proportional to 207,092.64, 310,560.24 and 66,830.24 is: 100,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,092.64 : 310,560.24 = 66,830.24 : x
  2. Step 2: Convert to fraction form
    207,092.64/310,560.24 = 66,830.24/x
  3. Step 3: Cross multiply
    207,092.64x = 310,560.24 × 66,830.24
  4. Step 4: Simplify right side
    207,092.64x = 20,754,815,373.66
  5. Step 5: Solve for x
    x = 20,754,815,373.66/207,092.64
  6. Step 6: Final answer
    x = 100,219.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.