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Finding the Fourth Proportional to 228,038.01, 314,665.20 and 126,049.70

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Solution

The fourth proportional to 228,038.01, 314,665.20 and 126,049.70 is: 173,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,038.01 : 314,665.20 = 126,049.70 : x
  2. Step 2: Convert to fraction form
    228,038.01/314,665.20 = 126,049.70/x
  3. Step 3: Cross multiply
    228,038.01x = 314,665.20 × 126,049.70
  4. Step 4: Simplify right side
    228,038.01x = 39,663,452,487.11
  5. Step 5: Solve for x
    x = 39,663,452,487.11/228,038.01
  6. Step 6: Final answer
    x = 173,933.51

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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.