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Finding the Fourth Proportional to 172,708.48, 238,354.88 and 101,084.32

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Solution

The fourth proportional to 172,708.48, 238,354.88 and 101,084.32 is: 139,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,708.48 : 238,354.88 = 101,084.32 : x
  2. Step 2: Convert to fraction form
    172,708.48/238,354.88 = 101,084.32/x
  3. Step 3: Cross multiply
    172,708.48x = 238,354.88 × 101,084.32
  4. Step 4: Simplify right side
    172,708.48x = 24,093,940,963.48
  5. Step 5: Solve for x
    x = 24,093,940,963.48/172,708.48
  6. Step 6: Final answer
    x = 139,506.42

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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.