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Finding the Fourth Proportional to 79,898.78, 110,273.73 and 48,070.64

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Solution

The fourth proportional to 79,898.78, 110,273.73 and 48,070.64 is: 66,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,898.78 : 110,273.73 = 48,070.64 : x
  2. Step 2: Convert to fraction form
    79,898.78/110,273.73 = 48,070.64/x
  3. Step 3: Cross multiply
    79,898.78x = 110,273.73 × 48,070.64
  4. Step 4: Simplify right side
    79,898.78x = 5,300,928,776.29
  5. Step 5: Solve for x
    x = 5,300,928,776.29/79,898.78
  6. Step 6: Final answer
    x = 66,345.55

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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.