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Finding the Fourth Proportional to 161,772.30, 242,658.45 and 43,455.60

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Solution

The fourth proportional to 161,772.30, 242,658.45 and 43,455.60 is: 65,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,772.30 : 242,658.45 = 43,455.60 : x
  2. Step 2: Convert to fraction form
    161,772.30/242,658.45 = 43,455.60/x
  3. Step 3: Cross multiply
    161,772.30x = 242,658.45 × 43,455.60
  4. Step 4: Simplify right side
    161,772.30x = 10,544,868,539.82
  5. Step 5: Solve for x
    x = 10,544,868,539.82/161,772.30
  6. Step 6: Final answer
    x = 65,183.40

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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.