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Finding the Fourth Proportional to 70,322.67, 97,044.98 and 38,491.47

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Solution

The fourth proportional to 70,322.67, 97,044.98 and 38,491.47 is: 53,118.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,322.67 : 97,044.98 = 38,491.47 : x
  2. Step 2: Convert to fraction form
    70,322.67/97,044.98 = 38,491.47/x
  3. Step 3: Cross multiply
    70,322.67x = 97,044.98 × 38,491.47
  4. Step 4: Simplify right side
    70,322.67x = 3,735,403,743.86
  5. Step 5: Solve for x
    x = 3,735,403,743.86/70,322.67
  6. Step 6: Final answer
    x = 53,118.06

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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.