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Finding the Fourth Proportional to 67,773.21, 93,530.21 and 42,294.66

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Solution

The fourth proportional to 67,773.21, 93,530.21 and 42,294.66 is: 58,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,773.21 : 93,530.21 = 42,294.66 : x
  2. Step 2: Convert to fraction form
    67,773.21/93,530.21 = 42,294.66/x
  3. Step 3: Cross multiply
    67,773.21x = 93,530.21 × 42,294.66
  4. Step 4: Simplify right side
    67,773.21x = 3,955,828,220.21
  5. Step 5: Solve for x
    x = 3,955,828,220.21/67,773.21
  6. Step 6: Final answer
    x = 58,368.61

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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.