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Finding the Fourth Proportional to 158,898.57, 219,279.09 and 86,300.65

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Solution

The fourth proportional to 158,898.57, 219,279.09 and 86,300.65 is: 119,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,898.57 : 219,279.09 = 86,300.65 : x
  2. Step 2: Convert to fraction form
    158,898.57/219,279.09 = 86,300.65/x
  3. Step 3: Cross multiply
    158,898.57x = 219,279.09 × 86,300.65
  4. Step 4: Simplify right side
    158,898.57x = 18,923,927,450.21
  5. Step 5: Solve for x
    x = 18,923,927,450.21/158,898.57
  6. Step 6: Final answer
    x = 119,094.38

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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.