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Finding the Fourth Proportional to 125,668.56, 173,422.80 and 69,080.28

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Solution

The fourth proportional to 125,668.56, 173,422.80 and 69,080.28 is: 95,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,668.56 : 173,422.80 = 69,080.28 : x
  2. Step 2: Convert to fraction form
    125,668.56/173,422.80 = 69,080.28/x
  3. Step 3: Cross multiply
    125,668.56x = 173,422.80 × 69,080.28
  4. Step 4: Simplify right side
    125,668.56x = 11,980,095,582.38
  5. Step 5: Solve for x
    x = 11,980,095,582.38/125,668.56
  6. Step 6: Final answer
    x = 95,330.89

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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.