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Finding the Fourth Proportional to 179,886.78, 248,242.32 and 99,314.46

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Solution

The fourth proportional to 179,886.78, 248,242.32 and 99,314.46 is: 137,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,886.78 : 248,242.32 = 99,314.46 : x
  2. Step 2: Convert to fraction form
    179,886.78/248,242.32 = 99,314.46/x
  3. Step 3: Cross multiply
    179,886.78x = 248,242.32 × 99,314.46
  4. Step 4: Simplify right side
    179,886.78x = 24,654,051,959.95
  5. Step 5: Solve for x
    x = 24,654,051,959.95/179,886.78
  6. Step 6: Final answer
    x = 137,053.16

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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.