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Finding the Fourth Proportional to 186,327.91, 257,119.54 and 105,757.08

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Solution

The fourth proportional to 186,327.91, 257,119.54 and 105,757.08 is: 145,937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,327.91 : 257,119.54 = 105,757.08 : x
  2. Step 2: Convert to fraction form
    186,327.91/257,119.54 = 105,757.08/x
  3. Step 3: Cross multiply
    186,327.91x = 257,119.54 × 105,757.08
  4. Step 4: Simplify right side
    186,327.91x = 27,192,211,761.34
  5. Step 5: Solve for x
    x = 27,192,211,761.34/186,327.91
  6. Step 6: Final answer
    x = 145,937.41

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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.