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Finding the Fourth Proportional to 179,727.52, 248,024.80 and 99,155

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Solution

The fourth proportional to 179,727.52, 248,024.80 and 99,155 is: 136,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,727.52 : 248,024.80 = 99,155 : x
  2. Step 2: Convert to fraction form
    179,727.52/248,024.80 = 99,155/x
  3. Step 3: Cross multiply
    179,727.52x = 248,024.80 × 99,155
  4. Step 4: Simplify right side
    179,727.52x = 24,592,899,044
  5. Step 5: Solve for x
    x = 24,592,899,044/179,727.52
  6. Step 6: Final answer
    x = 136,834.35

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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.