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Finding the Fourth Proportional to 70,957.57, 97,819.72 and 55,823.99

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Solution

The fourth proportional to 70,957.57, 97,819.72 and 55,823.99 is: 76,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,957.57 : 97,819.72 = 55,823.99 : x
  2. Step 2: Convert to fraction form
    70,957.57/97,819.72 = 55,823.99/x
  3. Step 3: Cross multiply
    70,957.57x = 97,819.72 × 55,823.99
  4. Step 4: Simplify right side
    70,957.57x = 5,460,686,442.42
  5. Step 5: Solve for x
    x = 5,460,686,442.42/70,957.57
  6. Step 6: Final answer
    x = 76,957.07

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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.