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Finding the Fourth Proportional to 184,871.85, 255,123.17 and 99,988.91

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Solution

The fourth proportional to 184,871.85, 255,123.17 and 99,988.91 is: 137,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,871.85 : 255,123.17 = 99,988.91 : x
  2. Step 2: Convert to fraction form
    184,871.85/255,123.17 = 99,988.91/x
  3. Step 3: Cross multiply
    184,871.85x = 255,123.17 × 99,988.91
  4. Step 4: Simplify right side
    184,871.85x = 25,509,488,675.22
  5. Step 5: Solve for x
    x = 25,509,488,675.22/184,871.85
  6. Step 6: Final answer
    x = 137,984.71

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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.