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Finding the Fourth Proportional to 363,391.45, 545,045.66 and 97,172.73

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Solution

The fourth proportional to 363,391.45, 545,045.66 and 97,172.73 is: 145,747.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,391.45 : 545,045.66 = 97,172.73 : x
  2. Step 2: Convert to fraction form
    363,391.45/545,045.66 = 97,172.73/x
  3. Step 3: Cross multiply
    363,391.45x = 545,045.66 × 97,172.73
  4. Step 4: Simplify right side
    363,391.45x = 52,963,571,807.19
  5. Step 5: Solve for x
    x = 52,963,571,807.19/363,391.45
  6. Step 6: Final answer
    x = 145,747.99

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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.