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Finding the Fourth Proportional to 228,251.15, 314,984.39 and 127,649.15

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Solution

The fourth proportional to 228,251.15, 314,984.39 and 127,649.15 is: 176,154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,251.15 : 314,984.39 = 127,649.15 : x
  2. Step 2: Convert to fraction form
    228,251.15/314,984.39 = 127,649.15/x
  3. Step 3: Cross multiply
    228,251.15x = 314,984.39 × 127,649.15
  4. Step 4: Simplify right side
    228,251.15x = 40,207,487,433.60
  5. Step 5: Solve for x
    x = 40,207,487,433.60/228,251.15
  6. Step 6: Final answer
    x = 176,154.59

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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.