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Finding the Fourth Proportional to 214,703.04, 322,054.57 and 66,959.04

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Solution

The fourth proportional to 214,703.04, 322,054.57 and 66,959.04 is: 100,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,703.04 : 322,054.57 = 66,959.04 : x
  2. Step 2: Convert to fraction form
    214,703.04/322,054.57 = 66,959.04/x
  3. Step 3: Cross multiply
    214,703.04x = 322,054.57 × 66,959.04
  4. Step 4: Simplify right side
    214,703.04x = 21,564,464,834.81
  5. Step 5: Solve for x
    x = 21,564,464,834.81/214,703.04
  6. Step 6: Final answer
    x = 100,438.56

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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.