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Finding the Fourth Proportional to 61,188.66, 84,439.86 and 34,330.62

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Solution

The fourth proportional to 61,188.66, 84,439.86 and 34,330.62 is: 47,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.66 : 84,439.86 = 34,330.62 : x
  2. Step 2: Convert to fraction form
    61,188.66/84,439.86 = 34,330.62/x
  3. Step 3: Cross multiply
    61,188.66x = 84,439.86 × 34,330.62
  4. Step 4: Simplify right side
    61,188.66x = 2,898,872,746.51
  5. Step 5: Solve for x
    x = 2,898,872,746.51/61,188.66
  6. Step 6: Final answer
    x = 47,375.98

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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.