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Finding the Fourth Proportional to 259,612.65, 358,290.54 and 157,614.48

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Solution

The fourth proportional to 259,612.65, 358,290.54 and 157,614.48 is: 217,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,612.65 : 358,290.54 = 157,614.48 : x
  2. Step 2: Convert to fraction form
    259,612.65/358,290.54 = 157,614.48/x
  3. Step 3: Cross multiply
    259,612.65x = 358,290.54 × 157,614.48
  4. Step 4: Simplify right side
    259,612.65x = 56,471,777,151.02
  5. Step 5: Solve for x
    x = 56,471,777,151.02/259,612.65
  6. Step 6: Final answer
    x = 217,523.21

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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.