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Finding the Fourth Proportional to 124,101.80, 171,434.90 and 110,668.76

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Solution

The fourth proportional to 124,101.80, 171,434.90 and 110,668.76 is: 152,878.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,101.80 : 171,434.90 = 110,668.76 : x
  2. Step 2: Convert to fraction form
    124,101.80/171,434.90 = 110,668.76/x
  3. Step 3: Cross multiply
    124,101.80x = 171,434.90 × 110,668.76
  4. Step 4: Simplify right side
    124,101.80x = 18,972,487,223.22
  5. Step 5: Solve for x
    x = 18,972,487,223.22/124,101.80
  6. Step 6: Final answer
    x = 152,878.43

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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.