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Finding the Fourth Proportional to 159,113.99, 219,522.69 and 98,662.88

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Solution

The fourth proportional to 159,113.99, 219,522.69 and 98,662.88 is: 136,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,113.99 : 219,522.69 = 98,662.88 : x
  2. Step 2: Convert to fraction form
    159,113.99/219,522.69 = 98,662.88/x
  3. Step 3: Cross multiply
    159,113.99x = 219,522.69 × 98,662.88
  4. Step 4: Simplify right side
    159,113.99x = 21,658,740,820.75
  5. Step 5: Solve for x
    x = 21,658,740,820.75/159,113.99
  6. Step 6: Final answer
    x = 136,120.91

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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.