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Finding the Fourth Proportional to 172,831.32, 238,521.51 and 96,340.08

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Solution

The fourth proportional to 172,831.32, 238,521.51 and 96,340.08 is: 132,957.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,831.32 : 238,521.51 = 96,340.08 : x
  2. Step 2: Convert to fraction form
    172,831.32/238,521.51 = 96,340.08/x
  3. Step 3: Cross multiply
    172,831.32x = 238,521.51 × 96,340.08
  4. Step 4: Simplify right side
    172,831.32x = 22,979,182,249.58
  5. Step 5: Solve for x
    x = 22,979,182,249.58/172,831.32
  6. Step 6: Final answer
    x = 132,957.28

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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.