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Finding the Fourth Proportional to 143,339.30, 214,944.15 and 64,412.90

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Solution

The fourth proportional to 143,339.30, 214,944.15 and 64,412.90 is: 96,590.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,339.30 : 214,944.15 = 64,412.90 : x
  2. Step 2: Convert to fraction form
    143,339.30/214,944.15 = 64,412.90/x
  3. Step 3: Cross multiply
    143,339.30x = 214,944.15 × 64,412.90
  4. Step 4: Simplify right side
    143,339.30x = 13,845,176,039.54
  5. Step 5: Solve for x
    x = 13,845,176,039.54/143,339.30
  6. Step 6: Final answer
    x = 96,590.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.