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Finding the Fourth Proportional to 70,619.52, 97,426.60 and 45,119.31

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Solution

The fourth proportional to 70,619.52, 97,426.60 and 45,119.31 is: 62,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,619.52 : 97,426.60 = 45,119.31 : x
  2. Step 2: Convert to fraction form
    70,619.52/97,426.60 = 45,119.31/x
  3. Step 3: Cross multiply
    70,619.52x = 97,426.60 × 45,119.31
  4. Step 4: Simplify right side
    70,619.52x = 4,395,820,967.65
  5. Step 5: Solve for x
    x = 4,395,820,967.65/70,619.52
  6. Step 6: Final answer
    x = 62,246.54

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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.