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Finding the Fourth Proportional to 70,070.48, 105,179.69 and 32,666.63

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Solution

The fourth proportional to 70,070.48, 105,179.69 and 32,666.63 is: 49,034.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,070.48 : 105,179.69 = 32,666.63 : x
  2. Step 2: Convert to fraction form
    70,070.48/105,179.69 = 32,666.63/x
  3. Step 3: Cross multiply
    70,070.48x = 105,179.69 × 32,666.63
  4. Step 4: Simplify right side
    70,070.48x = 3,435,865,480.64
  5. Step 5: Solve for x
    x = 3,435,865,480.64/70,070.48
  6. Step 6: Final answer
    x = 49,034.42

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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.