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Finding the Fourth Proportional to 217,897.88, 326,762.58 and 84,760.16

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Solution

The fourth proportional to 217,897.88, 326,762.58 and 84,760.16 is: 127,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,897.88 : 326,762.58 = 84,760.16 : x
  2. Step 2: Convert to fraction form
    217,897.88/326,762.58 = 84,760.16/x
  3. Step 3: Cross multiply
    217,897.88x = 326,762.58 × 84,760.16
  4. Step 4: Simplify right side
    217,897.88x = 27,696,448,562.81
  5. Step 5: Solve for x
    x = 27,696,448,562.81/217,897.88
  6. Step 6: Final answer
    x = 127,107.47

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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.