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Finding the Fourth Proportional to 186,357.27, 257,173.47 and 101,479.80

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Solution

The fourth proportional to 186,357.27, 257,173.47 and 101,479.80 is: 140,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,357.27 : 257,173.47 = 101,479.80 : x
  2. Step 2: Convert to fraction form
    186,357.27/257,173.47 = 101,479.80/x
  3. Step 3: Cross multiply
    186,357.27x = 257,173.47 × 101,479.80
  4. Step 4: Simplify right side
    186,357.27x = 26,097,912,300.91
  5. Step 5: Solve for x
    x = 26,097,912,300.91/186,357.27
  6. Step 6: Final answer
    x = 140,042.36

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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.