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Finding the Fourth Proportional to 64,984.80, 97,477.20 and 58,861.20

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Solution

The fourth proportional to 64,984.80, 97,477.20 and 58,861.20 is: 88,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,984.80 : 97,477.20 = 58,861.20 : x
  2. Step 2: Convert to fraction form
    64,984.80/97,477.20 = 58,861.20/x
  3. Step 3: Cross multiply
    64,984.80x = 97,477.20 × 58,861.20
  4. Step 4: Simplify right side
    64,984.80x = 5,737,624,964.64
  5. Step 5: Solve for x
    x = 5,737,624,964.64/64,984.80
  6. Step 6: Final answer
    x = 88,291.80

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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.