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Finding the Fourth Proportional to 243,744.63, 365,624.55 and 66,255.41

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Solution

The fourth proportional to 243,744.63, 365,624.55 and 66,255.41 is: 99,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,744.63 : 365,624.55 = 66,255.41 : x
  2. Step 2: Convert to fraction form
    243,744.63/365,624.55 = 66,255.41/x
  3. Step 3: Cross multiply
    243,744.63x = 365,624.55 × 66,255.41
  4. Step 4: Simplify right side
    243,744.63x = 24,224,602,638.19
  5. Step 5: Solve for x
    x = 24,224,602,638.19/243,744.63
  6. Step 6: Final answer
    x = 99,385.17

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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.