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Finding the Fourth Proportional to 70,188.80, 105,300.48 and 49,452.80

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Solution

The fourth proportional to 70,188.80, 105,300.48 and 49,452.80 is: 74,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,188.80 : 105,300.48 = 49,452.80 : x
  2. Step 2: Convert to fraction form
    70,188.80/105,300.48 = 49,452.80/x
  3. Step 3: Cross multiply
    70,188.80x = 105,300.48 × 49,452.80
  4. Step 4: Simplify right side
    70,188.80x = 5,207,403,577.34
  5. Step 5: Solve for x
    x = 5,207,403,577.34/70,188.80
  6. Step 6: Final answer
    x = 74,191.37

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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.