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Finding the Fourth Proportional to 74,359.88, 102,621.78 and 42,094.52

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Solution

The fourth proportional to 74,359.88, 102,621.78 and 42,094.52 is: 58,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,359.88 : 102,621.78 = 42,094.52 : x
  2. Step 2: Convert to fraction form
    74,359.88/102,621.78 = 42,094.52/x
  3. Step 3: Cross multiply
    74,359.88x = 102,621.78 × 42,094.52
  4. Step 4: Simplify right side
    74,359.88x = 4,319,814,570.65
  5. Step 5: Solve for x
    x = 4,319,814,570.65/74,359.88
  6. Step 6: Final answer
    x = 58,093.35

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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.