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Finding the Fourth Proportional to 207,616.16, 286,510.28 and 112,122.84

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Solution

The fourth proportional to 207,616.16, 286,510.28 and 112,122.84 is: 154,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,616.16 : 286,510.28 = 112,122.84 : x
  2. Step 2: Convert to fraction form
    207,616.16/286,510.28 = 112,122.84/x
  3. Step 3: Cross multiply
    207,616.16x = 286,510.28 × 112,122.84
  4. Step 4: Simplify right side
    207,616.16x = 32,124,346,282.80
  5. Step 5: Solve for x
    x = 32,124,346,282.80/207,616.16
  6. Step 6: Final answer
    x = 154,729.51

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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.