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Finding the Fourth Proportional to 186,445.82, 257,293.91 and 101,562.88

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Solution

The fourth proportional to 186,445.82, 257,293.91 and 101,562.88 is: 140,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,445.82 : 257,293.91 = 101,562.88 : x
  2. Step 2: Convert to fraction form
    186,445.82/257,293.91 = 101,562.88/x
  3. Step 3: Cross multiply
    186,445.82x = 257,293.91 × 101,562.88
  4. Step 4: Simplify right side
    186,445.82x = 26,131,510,116.73
  5. Step 5: Solve for x
    x = 26,131,510,116.73/186,445.82
  6. Step 6: Final answer
    x = 140,156.06

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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.