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Finding the Fourth Proportional to 179,410, 247,585.80 and 99,922

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Solution

The fourth proportional to 179,410, 247,585.80 and 99,922 is: 137,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,410 : 247,585.80 = 99,922 : x
  2. Step 2: Convert to fraction form
    179,410/247,585.80 = 99,922/x
  3. Step 3: Cross multiply
    179,410x = 247,585.80 × 99,922
  4. Step 4: Simplify right side
    179,410x = 24,739,268,307.60
  5. Step 5: Solve for x
    x = 24,739,268,307.60/179,410
  6. Step 6: Final answer
    x = 137,892.36

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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.