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Finding the Fourth Proportional to 68,898.76, 95,090.68 and 42,056.88

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Solution

The fourth proportional to 68,898.76, 95,090.68 and 42,056.88 is: 58,044.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,898.76 : 95,090.68 = 42,056.88 : x
  2. Step 2: Convert to fraction form
    68,898.76/95,090.68 = 42,056.88/x
  3. Step 3: Cross multiply
    68,898.76x = 95,090.68 × 42,056.88
  4. Step 4: Simplify right side
    68,898.76x = 3,999,217,317.88
  5. Step 5: Solve for x
    x = 3,999,217,317.88/68,898.76
  6. Step 6: Final answer
    x = 58,044.84

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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.