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Finding the Fourth Proportional to 186,859.30, 257,862.23 and 101,976.97

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Solution

The fourth proportional to 186,859.30, 257,862.23 and 101,976.97 is: 140,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,859.30 : 257,862.23 = 101,976.97 : x
  2. Step 2: Convert to fraction form
    186,859.30/257,862.23 = 101,976.97/x
  3. Step 3: Cross multiply
    186,859.30x = 257,862.23 × 101,976.97
  4. Step 4: Simplify right side
    186,859.30x = 26,296,008,503.13
  5. Step 5: Solve for x
    x = 26,296,008,503.13/186,859.30
  6. Step 6: Final answer
    x = 140,726.25

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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.