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Finding the Fourth Proportional to 113,947.61, 157,239.61 and 62,959.77

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Solution

The fourth proportional to 113,947.61, 157,239.61 and 62,959.77 is: 86,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,947.61 : 157,239.61 = 62,959.77 : x
  2. Step 2: Convert to fraction form
    113,947.61/157,239.61 = 62,959.77/x
  3. Step 3: Cross multiply
    113,947.61x = 157,239.61 × 62,959.77
  4. Step 4: Simplify right side
    113,947.61x = 9,899,769,523.09
  5. Step 5: Solve for x
    x = 9,899,769,523.09/113,947.61
  6. Step 6: Final answer
    x = 86,880.01

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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.