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Finding the Fourth Proportional to 211,703.62, 317,488.53 and 69,525.46

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Solution

The fourth proportional to 211,703.62, 317,488.53 and 69,525.46 is: 104,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,703.62 : 317,488.53 = 69,525.46 : x
  2. Step 2: Convert to fraction form
    211,703.62/317,488.53 = 69,525.46/x
  3. Step 3: Cross multiply
    211,703.62x = 317,488.53 × 69,525.46
  4. Step 4: Simplify right side
    211,703.62x = 22,073,537,109.74
  5. Step 5: Solve for x
    x = 22,073,537,109.74/211,703.62
  6. Step 6: Final answer
    x = 104,266.23

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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.