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Finding the Fourth Proportional to 163,016.71, 224,962.45 and 91,396.69

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Solution

The fourth proportional to 163,016.71, 224,962.45 and 91,396.69 is: 126,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,016.71 : 224,962.45 = 91,396.69 : x
  2. Step 2: Convert to fraction form
    163,016.71/224,962.45 = 91,396.69/x
  3. Step 3: Cross multiply
    163,016.71x = 224,962.45 × 91,396.69
  4. Step 4: Simplify right side
    163,016.71x = 20,560,823,304.29
  5. Step 5: Solve for x
    x = 20,560,823,304.29/163,016.71
  6. Step 6: Final answer
    x = 126,127.09

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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.