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Finding the Fourth Proportional to 64,847.74, 97,271.61 and 50,078.20

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Solution

The fourth proportional to 64,847.74, 97,271.61 and 50,078.20 is: 75,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,847.74 : 97,271.61 = 50,078.20 : x
  2. Step 2: Convert to fraction form
    64,847.74/97,271.61 = 50,078.20/x
  3. Step 3: Cross multiply
    64,847.74x = 97,271.61 × 50,078.20
  4. Step 4: Simplify right side
    64,847.74x = 4,871,187,139.90
  5. Step 5: Solve for x
    x = 4,871,187,139.90/64,847.74
  6. Step 6: Final answer
    x = 75,117.30

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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.