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Finding the Fourth Proportional to 61,001.94, 91,274.56 and 57,798.08

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Solution

The fourth proportional to 61,001.94, 91,274.56 and 57,798.08 is: 86,480.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,001.94 : 91,274.56 = 57,798.08 : x
  2. Step 2: Convert to fraction form
    61,001.94/91,274.56 = 57,798.08/x
  3. Step 3: Cross multiply
    61,001.94x = 91,274.56 × 57,798.08
  4. Step 4: Simplify right side
    61,001.94x = 5,275,494,320.84
  5. Step 5: Solve for x
    x = 5,275,494,320.84/61,001.94
  6. Step 6: Final answer
    x = 86,480.76

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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.