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Finding the Fourth Proportional to 148,478.70, 222,718.05 and 97,740.30

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Solution

The fourth proportional to 148,478.70, 222,718.05 and 97,740.30 is: 146,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,478.70 : 222,718.05 = 97,740.30 : x
  2. Step 2: Convert to fraction form
    148,478.70/222,718.05 = 97,740.30/x
  3. Step 3: Cross multiply
    148,478.70x = 222,718.05 × 97,740.30
  4. Step 4: Simplify right side
    148,478.70x = 21,768,529,022.42
  5. Step 5: Solve for x
    x = 21,768,529,022.42/148,478.70
  6. Step 6: Final answer
    x = 146,610.45

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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.