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Finding the Fourth Proportional to 211,809.78, 317,758.38 and 62,054.94

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Solution

The fourth proportional to 211,809.78, 317,758.38 and 62,054.94 is: 93,095.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,809.78 : 317,758.38 = 62,054.94 : x
  2. Step 2: Convert to fraction form
    211,809.78/317,758.38 = 62,054.94/x
  3. Step 3: Cross multiply
    211,809.78x = 317,758.38 × 62,054.94
  4. Step 4: Simplify right side
    211,809.78x = 19,718,477,205.40
  5. Step 5: Solve for x
    x = 19,718,477,205.40/211,809.78
  6. Step 6: Final answer
    x = 93,095.22

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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.