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Finding the Fourth Proportional to 98,064.54, 135,325.08 and 55,622.16

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Solution

The fourth proportional to 98,064.54, 135,325.08 and 55,622.16 is: 76,756.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,064.54 : 135,325.08 = 55,622.16 : x
  2. Step 2: Convert to fraction form
    98,064.54/135,325.08 = 55,622.16/x
  3. Step 3: Cross multiply
    98,064.54x = 135,325.08 × 55,622.16
  4. Step 4: Simplify right side
    98,064.54x = 7,527,073,251.77
  5. Step 5: Solve for x
    x = 7,527,073,251.77/98,064.54
  6. Step 6: Final answer
    x = 76,756.32

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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.