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Finding the Fourth Proportional to 270,235.90, 372,925.63 and 147,728.82

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Solution

The fourth proportional to 270,235.90, 372,925.63 and 147,728.82 is: 203,865.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,235.90 : 372,925.63 = 147,728.82 : x
  2. Step 2: Convert to fraction form
    270,235.90/372,925.63 = 147,728.82/x
  3. Step 3: Cross multiply
    270,235.90x = 372,925.63 × 147,728.82
  4. Step 4: Simplify right side
    270,235.90x = 55,091,863,267.66
  5. Step 5: Solve for x
    x = 55,091,863,267.66/270,235.90
  6. Step 6: Final answer
    x = 203,865.82

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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.