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Finding the Fourth Proportional to 99,124.22, 136,787.75 and 53,801.22

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Solution

The fourth proportional to 99,124.22, 136,787.75 and 53,801.22 is: 74,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,124.22 : 136,787.75 = 53,801.22 : x
  2. Step 2: Convert to fraction form
    99,124.22/136,787.75 = 53,801.22/x
  3. Step 3: Cross multiply
    99,124.22x = 136,787.75 × 53,801.22
  4. Step 4: Simplify right side
    99,124.22x = 7,359,348,307.53
  5. Step 5: Solve for x
    x = 7,359,348,307.53/99,124.22
  6. Step 6: Final answer
    x = 74,243.70

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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.