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Finding the Fourth Proportional to 145,816.80, 204,765.60 and 145,816.80

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Solution

The fourth proportional to 145,816.80, 204,765.60 and 145,816.80 is: 204,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,816.80 : 204,765.60 = 145,816.80 : x
  2. Step 2: Convert to fraction form
    145,816.80/204,765.60 = 145,816.80/x
  3. Step 3: Cross multiply
    145,816.80x = 204,765.60 × 145,816.80
  4. Step 4: Simplify right side
    145,816.80x = 29,858,264,542.08
  5. Step 5: Solve for x
    x = 29,858,264,542.08/145,816.80
  6. Step 6: Final answer
    x = 204,765.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.