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Finding the Fourth Proportional to 64,355.80, 96,533.70 and 53,202.10

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Solution

The fourth proportional to 64,355.80, 96,533.70 and 53,202.10 is: 79,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.80 : 96,533.70 = 53,202.10 : x
  2. Step 2: Convert to fraction form
    64,355.80/96,533.70 = 53,202.10/x
  3. Step 3: Cross multiply
    64,355.80x = 96,533.70 × 53,202.10
  4. Step 4: Simplify right side
    64,355.80x = 5,135,795,560.77
  5. Step 5: Solve for x
    x = 5,135,795,560.77/64,355.80
  6. Step 6: Final answer
    x = 79,803.15

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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.