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Finding the Fourth Proportional to 122,503.30, 183,776.55 and 43,663.30

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Solution

The fourth proportional to 122,503.30, 183,776.55 and 43,663.30 is: 65,502.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,503.30 : 183,776.55 = 43,663.30 : x
  2. Step 2: Convert to fraction form
    122,503.30/183,776.55 = 43,663.30/x
  3. Step 3: Cross multiply
    122,503.30x = 183,776.55 × 43,663.30
  4. Step 4: Simplify right side
    122,503.30x = 8,024,290,635.62
  5. Step 5: Solve for x
    x = 8,024,290,635.62/122,503.30
  6. Step 6: Final answer
    x = 65,502.65

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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.