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Finding the Fourth Proportional to 61,359.55, 84,680.62 and 37,490.78

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Solution

The fourth proportional to 61,359.55, 84,680.62 and 37,490.78 is: 51,739.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,359.55 : 84,680.62 = 37,490.78 : x
  2. Step 2: Convert to fraction form
    61,359.55/84,680.62 = 37,490.78/x
  3. Step 3: Cross multiply
    61,359.55x = 84,680.62 × 37,490.78
  4. Step 4: Simplify right side
    61,359.55x = 3,174,742,612.66
  5. Step 5: Solve for x
    x = 3,174,742,612.66/61,359.55
  6. Step 6: Final answer
    x = 51,739.99

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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.