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Finding the Fourth Proportional to 111,967.92, 154,535.85 and 64,237.05

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Solution

The fourth proportional to 111,967.92, 154,535.85 and 64,237.05 is: 88,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,967.92 : 154,535.85 = 64,237.05 : x
  2. Step 2: Convert to fraction form
    111,967.92/154,535.85 = 64,237.05/x
  3. Step 3: Cross multiply
    111,967.92x = 154,535.85 × 64,237.05
  4. Step 4: Simplify right side
    111,967.92x = 9,926,927,123.24
  5. Step 5: Solve for x
    x = 9,926,927,123.24/111,967.92
  6. Step 6: Final answer
    x = 88,658.67

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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.