Home / 211,465.14-317,263.52-69,311.66

Finding the Fourth Proportional to 211,465.14, 317,263.52 and 69,311.66

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Solution

The fourth proportional to 211,465.14, 317,263.52 and 69,311.66 is: 103,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,465.14 : 317,263.52 = 69,311.66 : x
  2. Step 2: Convert to fraction form
    211,465.14/317,263.52 = 69,311.66/x
  3. Step 3: Cross multiply
    211,465.14x = 317,263.52 × 69,311.66
  4. Step 4: Simplify right side
    211,465.14x = 21,990,061,228.64
  5. Step 5: Solve for x
    x = 21,990,061,228.64/211,465.14
  6. Step 6: Final answer
    x = 103,989.06

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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.