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Finding the Fourth Proportional to 111,950.40, 167,925.60 and 64,711.20

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Solution

The fourth proportional to 111,950.40, 167,925.60 and 64,711.20 is: 97,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,950.40 : 167,925.60 = 64,711.20 : x
  2. Step 2: Convert to fraction form
    111,950.40/167,925.60 = 64,711.20/x
  3. Step 3: Cross multiply
    111,950.40x = 167,925.60 × 64,711.20
  4. Step 4: Simplify right side
    111,950.40x = 10,866,667,086.72
  5. Step 5: Solve for x
    x = 10,866,667,086.72/111,950.40
  6. Step 6: Final answer
    x = 97,066.80

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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.