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Finding the Fourth Proportional to 67,666.40, 101,499.60 and 52,114.40

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Solution

The fourth proportional to 67,666.40, 101,499.60 and 52,114.40 is: 78,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,666.40 : 101,499.60 = 52,114.40 : x
  2. Step 2: Convert to fraction form
    67,666.40/101,499.60 = 52,114.40/x
  3. Step 3: Cross multiply
    67,666.40x = 101,499.60 × 52,114.40
  4. Step 4: Simplify right side
    67,666.40x = 5,289,590,754.24
  5. Step 5: Solve for x
    x = 5,289,590,754.24/67,666.40
  6. Step 6: Final answer
    x = 78,171.60

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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.