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Finding the Fourth Proportional to 80,607.84, 111,246.96 and 47,076.96

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Solution

The fourth proportional to 80,607.84, 111,246.96 and 47,076.96 is: 64,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,607.84 : 111,246.96 = 47,076.96 : x
  2. Step 2: Convert to fraction form
    80,607.84/111,246.96 = 47,076.96/x
  3. Step 3: Cross multiply
    80,607.84x = 111,246.96 × 47,076.96
  4. Step 4: Simplify right side
    80,607.84x = 5,237,168,686.04
  5. Step 5: Solve for x
    x = 5,237,168,686.04/80,607.84
  6. Step 6: Final answer
    x = 64,970.96

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1.5x scale

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.