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Finding the Fourth Proportional to 64,847.76, 97,271.60 and 50,078.16

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Solution

The fourth proportional to 64,847.76, 97,271.60 and 50,078.16 is: 75,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,847.76 : 97,271.60 = 50,078.16 : x
  2. Step 2: Convert to fraction form
    64,847.76/97,271.60 = 50,078.16/x
  3. Step 3: Cross multiply
    64,847.76x = 97,271.60 × 50,078.16
  4. Step 4: Simplify right side
    64,847.76x = 4,871,182,748.26
  5. Step 5: Solve for x
    x = 4,871,182,748.26/64,847.76
  6. Step 6: Final answer
    x = 75,117.21

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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.