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Finding the Fourth Proportional to 211,417.37, 317,172.70 and 61,669.37

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Solution

The fourth proportional to 211,417.37, 317,172.70 and 61,669.37 is: 92,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,417.37 : 317,172.70 = 61,669.37 : x
  2. Step 2: Convert to fraction form
    211,417.37/317,172.70 = 61,669.37/x
  3. Step 3: Cross multiply
    211,417.37x = 317,172.70 × 61,669.37
  4. Step 4: Simplify right side
    211,417.37x = 19,559,840,590.20
  5. Step 5: Solve for x
    x = 19,559,840,590.20/211,417.37
  6. Step 6: Final answer
    x = 92,517.66

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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.