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Finding the Fourth Proportional to 172,524.84, 238,053.24 and 98,931.48

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Solution

The fourth proportional to 172,524.84, 238,053.24 and 98,931.48 is: 136,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,524.84 : 238,053.24 = 98,931.48 : x
  2. Step 2: Convert to fraction form
    172,524.84/238,053.24 = 98,931.48/x
  3. Step 3: Cross multiply
    172,524.84x = 238,053.24 × 98,931.48
  4. Step 4: Simplify right side
    172,524.84x = 23,550,959,352.00
  5. Step 5: Solve for x
    x = 23,550,959,352.00/172,524.84
  6. Step 6: Final answer
    x = 136,507.64

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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.