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Finding the Fourth Proportional to 243,458.40, 365,533.20 and 150,146.40

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Solution

The fourth proportional to 243,458.40, 365,533.20 and 150,146.40 is: 225,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,458.40 : 365,533.20 = 150,146.40 : x
  2. Step 2: Convert to fraction form
    243,458.40/365,533.20 = 150,146.40/x
  3. Step 3: Cross multiply
    243,458.40x = 365,533.20 × 150,146.40
  4. Step 4: Simplify right side
    243,458.40x = 54,883,494,060.48
  5. Step 5: Solve for x
    x = 54,883,494,060.48/243,458.40
  6. Step 6: Final answer
    x = 225,432.74

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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.