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Finding the Fourth Proportional to 211,562.95, 317,396.95 and 104,996.92

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Solution

The fourth proportional to 211,562.95, 317,396.95 and 104,996.92 is: 157,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,562.95 : 317,396.95 = 104,996.92 : x
  2. Step 2: Convert to fraction form
    211,562.95/317,396.95 = 104,996.92/x
  3. Step 3: Cross multiply
    211,562.95x = 317,396.95 × 104,996.92
  4. Step 4: Simplify right side
    211,562.95x = 33,325,702,167.39
  5. Step 5: Solve for x
    x = 33,325,702,167.39/211,562.95
  6. Step 6: Final answer
    x = 157,521.45

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1.5x scale

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.