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Finding the Fourth Proportional to 270,209.78, 372,890.95 and 147,702.32

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Solution

The fourth proportional to 270,209.78, 372,890.95 and 147,702.32 is: 203,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,209.78 : 372,890.95 = 147,702.32 : x
  2. Step 2: Convert to fraction form
    270,209.78/372,890.95 = 147,702.32/x
  3. Step 3: Cross multiply
    270,209.78x = 372,890.95 × 147,702.32
  4. Step 4: Simplify right side
    270,209.78x = 55,076,858,422.00
  5. Step 5: Solve for x
    x = 55,076,858,422.00/270,209.78
  6. Step 6: Final answer
    x = 203,830.00

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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.