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Finding the Fourth Proportional to 239,149.44, 330,152.88 and 185,313.60

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Solution

The fourth proportional to 239,149.44, 330,152.88 and 185,313.60 is: 255,830.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,149.44 : 330,152.88 = 185,313.60 : x
  2. Step 2: Convert to fraction form
    239,149.44/330,152.88 = 185,313.60/x
  3. Step 3: Cross multiply
    239,149.44x = 330,152.88 × 185,313.60
  4. Step 4: Simplify right side
    239,149.44x = 61,181,818,743.17
  5. Step 5: Solve for x
    x = 61,181,818,743.17/239,149.44
  6. Step 6: Final answer
    x = 255,830.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.