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Finding the Fourth Proportional to 77,171.58, 106,500.90 and 43,178.04

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Solution

The fourth proportional to 77,171.58, 106,500.90 and 43,178.04 is: 59,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171.58 : 106,500.90 = 43,178.04 : x
  2. Step 2: Convert to fraction form
    77,171.58/106,500.90 = 43,178.04/x
  3. Step 3: Cross multiply
    77,171.58x = 106,500.90 × 43,178.04
  4. Step 4: Simplify right side
    77,171.58x = 4,598,500,120.24
  5. Step 5: Solve for x
    x = 4,598,500,120.24/77,171.58
  6. Step 6: Final answer
    x = 59,588.00

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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.