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Finding the Fourth Proportional to 64,219.90, 96,207.45 and 34,627.90

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Solution

The fourth proportional to 64,219.90, 96,207.45 and 34,627.90 is: 51,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,219.90 : 96,207.45 = 34,627.90 : x
  2. Step 2: Convert to fraction form
    64,219.90/96,207.45 = 34,627.90/x
  3. Step 3: Cross multiply
    64,219.90x = 96,207.45 × 34,627.90
  4. Step 4: Simplify right side
    64,219.90x = 3,331,461,957.86
  5. Step 5: Solve for x
    x = 3,331,461,957.86/64,219.90
  6. Step 6: Final answer
    x = 51,875.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.