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Finding the Fourth Proportional to 328,177.55, 492,349.37 and 91,520.24

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Solution

The fourth proportional to 328,177.55, 492,349.37 and 91,520.24 is: 137,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,177.55 : 492,349.37 = 91,520.24 : x
  2. Step 2: Convert to fraction form
    328,177.55/492,349.37 = 91,520.24/x
  3. Step 3: Cross multiply
    328,177.55x = 492,349.37 × 91,520.24
  4. Step 4: Simplify right side
    328,177.55x = 45,059,929,586.90
  5. Step 5: Solve for x
    x = 45,059,929,586.90/328,177.55
  6. Step 6: Final answer
    x = 137,303.51

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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.