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Finding the Fourth Proportional to 99,277.78, 148,927.56 and 43,079.26

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Solution

The fourth proportional to 99,277.78, 148,927.56 and 43,079.26 is: 64,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,277.78 : 148,927.56 = 43,079.26 : x
  2. Step 2: Convert to fraction form
    99,277.78/148,927.56 = 43,079.26/x
  3. Step 3: Cross multiply
    99,277.78x = 148,927.56 × 43,079.26
  4. Step 4: Simplify right side
    99,277.78x = 6,415,689,078.41
  5. Step 5: Solve for x
    x = 6,415,689,078.41/99,277.78
  6. Step 6: Final answer
    x = 64,623.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.