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Finding the Fourth Proportional to 186,352.65, 257,190.39 and 138,741.66

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Solution

The fourth proportional to 186,352.65, 257,190.39 and 138,741.66 is: 191,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,352.65 : 257,190.39 = 138,741.66 : x
  2. Step 2: Convert to fraction form
    186,352.65/257,190.39 = 138,741.66/x
  3. Step 3: Cross multiply
    186,352.65x = 257,190.39 × 138,741.66
  4. Step 4: Simplify right side
    186,352.65x = 35,683,021,644.65
  5. Step 5: Solve for x
    x = 35,683,021,644.65/186,352.65
  6. Step 6: Final answer
    x = 191,481.16

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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.