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Finding the Fourth Proportional to 124,283.16, 171,650.48 and 83,926.87

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Solution

The fourth proportional to 124,283.16, 171,650.48 and 83,926.87 is: 115,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,283.16 : 171,650.48 = 83,926.87 : x
  2. Step 2: Convert to fraction form
    124,283.16/171,650.48 = 83,926.87/x
  3. Step 3: Cross multiply
    124,283.16x = 171,650.48 × 83,926.87
  4. Step 4: Simplify right side
    124,283.16x = 14,406,086,671.64
  5. Step 5: Solve for x
    x = 14,406,086,671.64/124,283.16
  6. Step 6: Final answer
    x = 115,913.42

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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.