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Finding the Fourth Proportional to 207,876.33, 286,869.26 and 112,383

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Solution

The fourth proportional to 207,876.33, 286,869.26 and 112,383 is: 155,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,876.33 : 286,869.26 = 112,383 : x
  2. Step 2: Convert to fraction form
    207,876.33/286,869.26 = 112,383/x
  3. Step 3: Cross multiply
    207,876.33x = 286,869.26 × 112,383
  4. Step 4: Simplify right side
    207,876.33x = 32,239,228,046.58
  5. Step 5: Solve for x
    x = 32,239,228,046.58/207,876.33
  6. Step 6: Final answer
    x = 155,088.50

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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.