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Finding the Fourth Proportional to 228,442.44, 315,251.28 and 123,666.39

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Solution

The fourth proportional to 228,442.44, 315,251.28 and 123,666.39 is: 170,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,442.44 : 315,251.28 = 123,666.39 : x
  2. Step 2: Convert to fraction form
    228,442.44/315,251.28 = 123,666.39/x
  3. Step 3: Cross multiply
    228,442.44x = 315,251.28 × 123,666.39
  4. Step 4: Simplify right side
    228,442.44x = 38,985,987,740.48
  5. Step 5: Solve for x
    x = 38,985,987,740.48/228,442.44
  6. Step 6: Final answer
    x = 170,660.00

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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.