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Finding the Fourth Proportional to 307,847.84, 461,123.64 and 157,631.60

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Solution

The fourth proportional to 307,847.84, 461,123.64 and 157,631.60 is: 236,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,847.84 : 461,123.64 = 157,631.60 : x
  2. Step 2: Convert to fraction form
    307,847.84/461,123.64 = 157,631.60/x
  3. Step 3: Cross multiply
    307,847.84x = 461,123.64 × 157,631.60
  4. Step 4: Simplify right side
    307,847.84x = 72,687,657,171.02
  5. Step 5: Solve for x
    x = 72,687,657,171.02/307,847.84
  6. Step 6: Final answer
    x = 236,115.53

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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.