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Finding the Fourth Proportional to 146,666.55, 202,399.79 and 79,598.55

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Solution

The fourth proportional to 146,666.55, 202,399.79 and 79,598.55 is: 109,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,666.55 : 202,399.79 = 79,598.55 : x
  2. Step 2: Convert to fraction form
    146,666.55/202,399.79 = 79,598.55/x
  3. Step 3: Cross multiply
    146,666.55x = 202,399.79 × 79,598.55
  4. Step 4: Simplify right side
    146,666.55x = 16,110,729,804.30
  5. Step 5: Solve for x
    x = 16,110,729,804.30/146,666.55
  6. Step 6: Final answer
    x = 109,845.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.