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Finding the Fourth Proportional to 97,431.84, 134,456.36 and 52,719.84

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Solution

The fourth proportional to 97,431.84, 134,456.36 and 52,719.84 is: 72,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,431.84 : 134,456.36 = 52,719.84 : x
  2. Step 2: Convert to fraction form
    97,431.84/134,456.36 = 52,719.84/x
  3. Step 3: Cross multiply
    97,431.84x = 134,456.36 × 52,719.84
  4. Step 4: Simplify right side
    97,431.84x = 7,088,517,522.58
  5. Step 5: Solve for x
    x = 7,088,517,522.58/97,431.84
  6. Step 6: Final answer
    x = 72,753.60

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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.