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Finding the Fourth Proportional to 99,133.52, 136,800.56 and 53,810.52

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Solution

The fourth proportional to 99,133.52, 136,800.56 and 53,810.52 is: 74,256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,133.52 : 136,800.56 = 53,810.52 : x
  2. Step 2: Convert to fraction form
    99,133.52/136,800.56 = 53,810.52/x
  3. Step 3: Cross multiply
    99,133.52x = 136,800.56 × 53,810.52
  4. Step 4: Simplify right side
    99,133.52x = 7,361,309,000.84
  5. Step 5: Solve for x
    x = 7,361,309,000.84/99,133.52
  6. Step 6: Final answer
    x = 74,256.51

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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.