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Finding the Fourth Proportional to 239,384.16, 359,074.08 and 91,640.16

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Solution

The fourth proportional to 239,384.16, 359,074.08 and 91,640.16 is: 137,459.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,384.16 : 359,074.08 = 91,640.16 : x
  2. Step 2: Convert to fraction form
    239,384.16/359,074.08 = 91,640.16/x
  3. Step 3: Cross multiply
    239,384.16x = 359,074.08 × 91,640.16
  4. Step 4: Simplify right side
    239,384.16x = 32,905,606,143.05
  5. Step 5: Solve for x
    x = 32,905,606,143.05/239,384.16
  6. Step 6: Final answer
    x = 137,459.41

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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.