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Finding the Fourth Proportional to 207,591.54, 286,417.05 and 116,915.79

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Solution

The fourth proportional to 207,591.54, 286,417.05 and 116,915.79 is: 161,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,591.54 : 286,417.05 = 116,915.79 : x
  2. Step 2: Convert to fraction form
    207,591.54/286,417.05 = 116,915.79/x
  3. Step 3: Cross multiply
    207,591.54x = 286,417.05 × 116,915.79
  4. Step 4: Simplify right side
    207,591.54x = 33,486,675,670.22
  5. Step 5: Solve for x
    x = 33,486,675,670.22/207,591.54
  6. Step 6: Final answer
    x = 161,310.41

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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.