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Finding the Fourth Proportional to 239,220.30, 358,830.45 and 164,570.70

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Solution

The fourth proportional to 239,220.30, 358,830.45 and 164,570.70 is: 246,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,220.30 : 358,830.45 = 164,570.70 : x
  2. Step 2: Convert to fraction form
    239,220.30/358,830.45 = 164,570.70/x
  3. Step 3: Cross multiply
    239,220.30x = 358,830.45 × 164,570.70
  4. Step 4: Simplify right side
    239,220.30x = 59,052,978,337.82
  5. Step 5: Solve for x
    x = 59,052,978,337.82/239,220.30
  6. Step 6: Final answer
    x = 246,856.05

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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.