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Finding the Fourth Proportional to 61,076.03, 84,308.24 and 59,390.62

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Solution

The fourth proportional to 61,076.03, 84,308.24 and 59,390.62 is: 81,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,076.03 : 84,308.24 = 59,390.62 : x
  2. Step 2: Convert to fraction form
    61,076.03/84,308.24 = 59,390.62/x
  3. Step 3: Cross multiply
    61,076.03x = 84,308.24 × 59,390.62
  4. Step 4: Simplify right side
    61,076.03x = 5,007,118,582.41
  5. Step 5: Solve for x
    x = 5,007,118,582.41/61,076.03
  6. Step 6: Final answer
    x = 81,981.74

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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.