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Finding the Fourth Proportional to 70,612.46, 105,918.54 and 44,335.65

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Solution

The fourth proportional to 70,612.46, 105,918.54 and 44,335.65 is: 66,503.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,612.46 : 105,918.54 = 44,335.65 : x
  2. Step 2: Convert to fraction form
    70,612.46/105,918.54 = 44,335.65/x
  3. Step 3: Cross multiply
    70,612.46x = 105,918.54 × 44,335.65
  4. Step 4: Simplify right side
    70,612.46x = 4,695,967,548.89
  5. Step 5: Solve for x
    x = 4,695,967,548.89/70,612.46
  6. Step 6: Final answer
    x = 66,503.39

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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.