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Finding the Fourth Proportional to 108,939.84, 163,409.76 and 95,254.08

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Solution

The fourth proportional to 108,939.84, 163,409.76 and 95,254.08 is: 142,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,939.84 : 163,409.76 = 95,254.08 : x
  2. Step 2: Convert to fraction form
    108,939.84/163,409.76 = 95,254.08/x
  3. Step 3: Cross multiply
    108,939.84x = 163,409.76 × 95,254.08
  4. Step 4: Simplify right side
    108,939.84x = 15,565,446,351.82
  5. Step 5: Solve for x
    x = 15,565,446,351.82/108,939.84
  6. Step 6: Final answer
    x = 142,881.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.