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Finding the Fourth Proportional to 65,872.06, 90,955.86 and 60,834.44

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Solution

The fourth proportional to 65,872.06, 90,955.86 and 60,834.44 is: 83,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,872.06 : 90,955.86 = 60,834.44 : x
  2. Step 2: Convert to fraction form
    65,872.06/90,955.86 = 60,834.44/x
  3. Step 3: Cross multiply
    65,872.06x = 90,955.86 × 60,834.44
  4. Step 4: Simplify right side
    65,872.06x = 5,533,248,807.82
  5. Step 5: Solve for x
    x = 5,533,248,807.82/65,872.06
  6. Step 6: Final answer
    x = 83,999.94

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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.