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Finding the Fourth Proportional to 222,762.40, 334,138.80 and 148,359.20

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Solution

The fourth proportional to 222,762.40, 334,138.80 and 148,359.20 is: 222,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,762.40 : 334,138.80 = 148,359.20 : x
  2. Step 2: Convert to fraction form
    222,762.40/334,138.80 = 148,359.20/x
  3. Step 3: Cross multiply
    222,762.40x = 334,138.80 × 148,359.20
  4. Step 4: Simplify right side
    222,762.40x = 49,572,565,056.96
  5. Step 5: Solve for x
    x = 49,572,565,056.96/222,762.40
  6. Step 6: Final answer
    x = 222,535.60

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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.