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Finding the Fourth Proportional to 64,355.60, 96,533.40 and 53,469.20

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Solution

The fourth proportional to 64,355.60, 96,533.40 and 53,469.20 is: 80,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.60 : 96,533.40 = 53,469.20 : x
  2. Step 2: Convert to fraction form
    64,355.60/96,533.40 = 53,469.20/x
  3. Step 3: Cross multiply
    64,355.60x = 96,533.40 × 53,469.20
  4. Step 4: Simplify right side
    64,355.60x = 5,161,563,671.28
  5. Step 5: Solve for x
    x = 5,161,563,671.28/64,355.60
  6. Step 6: Final answer
    x = 80,203.80

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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.