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Finding the Fourth Proportional to 139,885.40, 192,984.08 and 97,468.52

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Solution

The fourth proportional to 139,885.40, 192,984.08 and 97,468.52 is: 134,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,885.40 : 192,984.08 = 97,468.52 : x
  2. Step 2: Convert to fraction form
    139,885.40/192,984.08 = 97,468.52/x
  3. Step 3: Cross multiply
    139,885.40x = 192,984.08 × 97,468.52
  4. Step 4: Simplify right side
    139,885.40x = 18,809,872,661.16
  5. Step 5: Solve for x
    x = 18,809,872,661.16/139,885.40
  6. Step 6: Final answer
    x = 134,466.30

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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.