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Finding the Fourth Proportional to 147,228.10, 220,514.10 and 127,545.10

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Solution

The fourth proportional to 147,228.10, 220,514.10 and 127,545.10 is: 191,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,228.10 : 220,514.10 = 127,545.10 : x
  2. Step 2: Convert to fraction form
    147,228.10/220,514.10 = 127,545.10/x
  3. Step 3: Cross multiply
    147,228.10x = 220,514.10 × 127,545.10
  4. Step 4: Simplify right side
    147,228.10x = 28,125,492,935.91
  5. Step 5: Solve for x
    x = 28,125,492,935.91/147,228.10
  6. Step 6: Final answer
    x = 191,033.46

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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.