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Finding the Fourth Proportional to 211,632.63, 317,458.67 and 53,862.45

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Solution

The fourth proportional to 211,632.63, 317,458.67 and 53,862.45 is: 80,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,632.63 : 317,458.67 = 53,862.45 : x
  2. Step 2: Convert to fraction form
    211,632.63/317,458.67 = 53,862.45/x
  3. Step 3: Cross multiply
    211,632.63x = 317,458.67 × 53,862.45
  4. Step 4: Simplify right side
    211,632.63x = 17,099,101,470.63
  5. Step 5: Solve for x
    x = 17,099,101,470.63/211,632.63
  6. Step 6: Final answer
    x = 80,796.15

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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.