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Finding the Fourth Proportional to 216,425.52, 298,666.59 and 120,932.29

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Solution

The fourth proportional to 216,425.52, 298,666.59 and 120,932.29 is: 166,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,425.52 : 298,666.59 = 120,932.29 : x
  2. Step 2: Convert to fraction form
    216,425.52/298,666.59 = 120,932.29/x
  3. Step 3: Cross multiply
    216,425.52x = 298,666.59 × 120,932.29
  4. Step 4: Simplify right side
    216,425.52x = 36,118,435,275.27
  5. Step 5: Solve for x
    x = 36,118,435,275.27/216,425.52
  6. Step 6: Final answer
    x = 166,886.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.