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Finding the Fourth Proportional to 123,877.11, 170,964.76 and 116,276.88

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Solution

The fourth proportional to 123,877.11, 170,964.76 and 116,276.88 is: 160,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,877.11 : 170,964.76 = 116,276.88 : x
  2. Step 2: Convert to fraction form
    123,877.11/170,964.76 = 116,276.88/x
  3. Step 3: Cross multiply
    123,877.11x = 170,964.76 × 116,276.88
  4. Step 4: Simplify right side
    123,877.11x = 19,879,249,451.19
  5. Step 5: Solve for x
    x = 19,879,249,451.19/123,877.11
  6. Step 6: Final answer
    x = 160,475.56

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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.