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Finding the Fourth Proportional to 191,842.32, 287,789.76 and 65,448.63

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Solution

The fourth proportional to 191,842.32, 287,789.76 and 65,448.63 is: 98,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,842.32 : 287,789.76 = 65,448.63 : x
  2. Step 2: Convert to fraction form
    191,842.32/287,789.76 = 65,448.63/x
  3. Step 3: Cross multiply
    191,842.32x = 287,789.76 × 65,448.63
  4. Step 4: Simplify right side
    191,842.32x = 18,835,445,520.03
  5. Step 5: Solve for x
    x = 18,835,445,520.03/191,842.32
  6. Step 6: Final answer
    x = 98,181.91

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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.