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Finding the Fourth Proportional to 70,495.52, 97,274.80 and 40,282.80

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Solution

The fourth proportional to 70,495.52, 97,274.80 and 40,282.80 is: 55,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,495.52 : 97,274.80 = 40,282.80 : x
  2. Step 2: Convert to fraction form
    70,495.52/97,274.80 = 40,282.80/x
  3. Step 3: Cross multiply
    70,495.52x = 97,274.80 × 40,282.80
  4. Step 4: Simplify right side
    70,495.52x = 3,918,501,313.44
  5. Step 5: Solve for x
    x = 3,918,501,313.44/70,495.52
  6. Step 6: Final answer
    x = 55,585.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.