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Finding the Fourth Proportional to 235,606.73, 325,141.17 and 128,176.84

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Solution

The fourth proportional to 235,606.73, 325,141.17 and 128,176.84 is: 176,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,606.73 : 325,141.17 = 128,176.84 : x
  2. Step 2: Convert to fraction form
    235,606.73/325,141.17 = 128,176.84/x
  3. Step 3: Cross multiply
    235,606.73x = 325,141.17 × 128,176.84
  4. Step 4: Simplify right side
    235,606.73x = 41,675,566,098.80
  5. Step 5: Solve for x
    x = 41,675,566,098.80/235,606.73
  6. Step 6: Final answer
    x = 176,886.14

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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.