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Finding the Fourth Proportional to 105,588.68, 159,181.90 and 99,873.32

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Solution

The fourth proportional to 105,588.68, 159,181.90 and 99,873.32 is: 150,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,588.68 : 159,181.90 = 99,873.32 : x
  2. Step 2: Convert to fraction form
    105,588.68/159,181.90 = 99,873.32/x
  3. Step 3: Cross multiply
    105,588.68x = 159,181.90 × 99,873.32
  4. Step 4: Simplify right side
    105,588.68x = 15,898,024,836.91
  5. Step 5: Solve for x
    x = 15,898,024,836.91/105,588.68
  6. Step 6: Final answer
    x = 150,565.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.