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Finding the Fourth Proportional to 70,398.44, 97,122.66 and 45,261.80

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Solution

The fourth proportional to 70,398.44, 97,122.66 and 45,261.80 is: 62,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,398.44 : 97,122.66 = 45,261.80 : x
  2. Step 2: Convert to fraction form
    70,398.44/97,122.66 = 45,261.80/x
  3. Step 3: Cross multiply
    70,398.44x = 97,122.66 × 45,261.80
  4. Step 4: Simplify right side
    70,398.44x = 4,395,946,412.39
  5. Step 5: Solve for x
    x = 4,395,946,412.39/70,398.44
  6. Step 6: Final answer
    x = 62,443.80

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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.