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Finding the Fourth Proportional to 63,139.66, 87,130.44 and 34,844.74

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Solution

The fourth proportional to 63,139.66, 87,130.44 and 34,844.74 is: 48,084.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,139.66 : 87,130.44 = 34,844.74 : x
  2. Step 2: Convert to fraction form
    63,139.66/87,130.44 = 34,844.74/x
  3. Step 3: Cross multiply
    63,139.66x = 87,130.44 × 34,844.74
  4. Step 4: Simplify right side
    63,139.66x = 3,036,037,527.89
  5. Step 5: Solve for x
    x = 3,036,037,527.89/63,139.66
  6. Step 6: Final answer
    x = 48,084.48

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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.