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Finding the Fourth Proportional to 148,213.40, 222,320.10 and 65,107.40

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Solution

The fourth proportional to 148,213.40, 222,320.10 and 65,107.40 is: 97,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,213.40 : 222,320.10 = 65,107.40 : x
  2. Step 2: Convert to fraction form
    148,213.40/222,320.10 = 65,107.40/x
  3. Step 3: Cross multiply
    148,213.40x = 222,320.10 × 65,107.40
  4. Step 4: Simplify right side
    148,213.40x = 14,474,683,678.74
  5. Step 5: Solve for x
    x = 14,474,683,678.74/148,213.40
  6. Step 6: Final answer
    x = 97,661.10

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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.