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Finding the Fourth Proportional to 172,868.16, 238,550.88 and 97,416.96

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Solution

The fourth proportional to 172,868.16, 238,550.88 and 97,416.96 is: 134,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,868.16 : 238,550.88 = 97,416.96 : x
  2. Step 2: Convert to fraction form
    172,868.16/238,550.88 = 97,416.96/x
  3. Step 3: Cross multiply
    172,868.16x = 238,550.88 × 97,416.96
  4. Step 4: Simplify right side
    172,868.16x = 23,238,901,534.92
  5. Step 5: Solve for x
    x = 23,238,901,534.92/172,868.16
  6. Step 6: Final answer
    x = 134,431.36

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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.