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Finding the Fourth Proportional to 179,642.91, 247,901.92 and 99,070.42

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Solution

The fourth proportional to 179,642.91, 247,901.92 and 99,070.42 is: 136,714.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,642.91 : 247,901.92 = 99,070.42 : x
  2. Step 2: Convert to fraction form
    179,642.91/247,901.92 = 99,070.42/x
  3. Step 3: Cross multiply
    179,642.91x = 247,901.92 × 99,070.42
  4. Step 4: Simplify right side
    179,642.91x = 24,559,746,233.37
  5. Step 5: Solve for x
    x = 24,559,746,233.37/179,642.91
  6. Step 6: Final answer
    x = 136,714.25

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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.