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Finding the Fourth Proportional to 172,761.40, 238,329.26 and 101,097.06

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Solution

The fourth proportional to 172,761.40, 238,329.26 and 101,097.06 is: 139,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,761.40 : 238,329.26 = 101,097.06 : x
  2. Step 2: Convert to fraction form
    172,761.40/238,329.26 = 101,097.06/x
  3. Step 3: Cross multiply
    172,761.40x = 238,329.26 × 101,097.06
  4. Step 4: Simplify right side
    172,761.40x = 24,094,387,497.98
  5. Step 5: Solve for x
    x = 24,094,387,497.98/172,761.40
  6. Step 6: Final answer
    x = 139,466.27

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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.