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Finding the Fourth Proportional to 114,027.90, 171,041.85 and 66,788.70

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Solution

The fourth proportional to 114,027.90, 171,041.85 and 66,788.70 is: 100,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,027.90 : 171,041.85 = 66,788.70 : x
  2. Step 2: Convert to fraction form
    114,027.90/171,041.85 = 66,788.70/x
  3. Step 3: Cross multiply
    114,027.90x = 171,041.85 × 66,788.70
  4. Step 4: Simplify right side
    114,027.90x = 11,423,662,807.10
  5. Step 5: Solve for x
    x = 11,423,662,807.10/114,027.90
  6. Step 6: Final answer
    x = 100,183.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.