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Finding the Fourth Proportional to 219,247.66, 328,873.97 and 77,097.16

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Solution

The fourth proportional to 219,247.66, 328,873.97 and 77,097.16 is: 115,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,247.66 : 328,873.97 = 77,097.16 : x
  2. Step 2: Convert to fraction form
    219,247.66/328,873.97 = 77,097.16/x
  3. Step 3: Cross multiply
    219,247.66x = 328,873.97 × 77,097.16
  4. Step 4: Simplify right side
    219,247.66x = 25,355,249,084.93
  5. Step 5: Solve for x
    x = 25,355,249,084.93/219,247.66
  6. Step 6: Final answer
    x = 115,646.61

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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.