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Finding the Fourth Proportional to 159,140.07, 219,611.73 and 87,523.11

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Solution

The fourth proportional to 159,140.07, 219,611.73 and 87,523.11 is: 120,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,140.07 : 219,611.73 = 87,523.11 : x
  2. Step 2: Convert to fraction form
    159,140.07/219,611.73 = 87,523.11/x
  3. Step 3: Cross multiply
    159,140.07x = 219,611.73 × 87,523.11
  4. Step 4: Simplify right side
    159,140.07x = 19,221,101,602.08
  5. Step 5: Solve for x
    x = 19,221,101,602.08/159,140.07
  6. Step 6: Final answer
    x = 120,781.03

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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.