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Finding the Fourth Proportional to 194,951.20, 292,426.80 and 163,458.40

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Solution

The fourth proportional to 194,951.20, 292,426.80 and 163,458.40 is: 245,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,951.20 : 292,426.80 = 163,458.40 : x
  2. Step 2: Convert to fraction form
    194,951.20/292,426.80 = 163,458.40/x
  3. Step 3: Cross multiply
    194,951.20x = 292,426.80 × 163,458.40
  4. Step 4: Simplify right side
    194,951.20x = 47,799,616,845.12
  5. Step 5: Solve for x
    x = 47,799,616,845.12/194,951.20
  6. Step 6: Final answer
    x = 245,187.60

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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.