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Finding the Fourth Proportional to 159,149.67, 219,628.04 and 86,553.24

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Solution

The fourth proportional to 159,149.67, 219,628.04 and 86,553.24 is: 119,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,149.67 : 219,628.04 = 86,553.24 : x
  2. Step 2: Convert to fraction form
    159,149.67/219,628.04 = 86,553.24/x
  3. Step 3: Cross multiply
    159,149.67x = 219,628.04 × 86,553.24
  4. Step 4: Simplify right side
    159,149.67x = 19,009,518,024.08
  5. Step 5: Solve for x
    x = 19,009,518,024.08/159,149.67
  6. Step 6: Final answer
    x = 119,444.28

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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.