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Finding the Fourth Proportional to 157,145.11, 216,822.41 and 92,616.91

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Solution

The fourth proportional to 157,145.11, 216,822.41 and 92,616.91 is: 127,789.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,145.11 : 216,822.41 = 92,616.91 : x
  2. Step 2: Convert to fraction form
    157,145.11/216,822.41 = 92,616.91/x
  3. Step 3: Cross multiply
    157,145.11x = 216,822.41 × 92,616.91
  4. Step 4: Simplify right side
    157,145.11x = 20,081,421,632.95
  5. Step 5: Solve for x
    x = 20,081,421,632.95/157,145.11
  6. Step 6: Final answer
    x = 127,789.03

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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.