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Finding the Fourth Proportional to 186,774.74, 257,713.89 and 111,330.26

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Solution

The fourth proportional to 186,774.74, 257,713.89 and 111,330.26 is: 153,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,774.74 : 257,713.89 = 111,330.26 : x
  2. Step 2: Convert to fraction form
    186,774.74/257,713.89 = 111,330.26/x
  3. Step 3: Cross multiply
    186,774.74x = 257,713.89 × 111,330.26
  4. Step 4: Simplify right side
    186,774.74x = 28,691,354,379.31
  5. Step 5: Solve for x
    x = 28,691,354,379.31/186,774.74
  6. Step 6: Final answer
    x = 153,614.75

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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.