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Finding the Fourth Proportional to 186,191.68, 256,945.68 and 101,309.36

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Solution

The fourth proportional to 186,191.68, 256,945.68 and 101,309.36 is: 139,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,191.68 : 256,945.68 = 101,309.36 : x
  2. Step 2: Convert to fraction form
    186,191.68/256,945.68 = 101,309.36/x
  3. Step 3: Cross multiply
    186,191.68x = 256,945.68 × 101,309.36
  4. Step 4: Simplify right side
    186,191.68x = 26,031,002,395.56
  5. Step 5: Solve for x
    x = 26,031,002,395.56/186,191.68
  6. Step 6: Final answer
    x = 139,807.55

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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.