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Finding the Fourth Proportional to 201,089.76, 277,633.92 and 124,690.02

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Solution

The fourth proportional to 201,089.76, 277,633.92 and 124,690.02 is: 172,152.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,089.76 : 277,633.92 = 124,690.02 : x
  2. Step 2: Convert to fraction form
    201,089.76/277,633.92 = 124,690.02/x
  3. Step 3: Cross multiply
    201,089.76x = 277,633.92 × 124,690.02
  4. Step 4: Simplify right side
    201,089.76x = 34,618,179,037.48
  5. Step 5: Solve for x
    x = 34,618,179,037.48/201,089.76
  6. Step 6: Final answer
    x = 172,152.87

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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.