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Finding the Fourth Proportional to 216,893.22, 299,255.88 and 124,990.02

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Solution

The fourth proportional to 216,893.22, 299,255.88 and 124,990.02 is: 172,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,893.22 : 299,255.88 = 124,990.02 : x
  2. Step 2: Convert to fraction form
    216,893.22/299,255.88 = 124,990.02/x
  3. Step 3: Cross multiply
    216,893.22x = 299,255.88 × 124,990.02
  4. Step 4: Simplify right side
    216,893.22x = 37,403,998,426.32
  5. Step 5: Solve for x
    x = 37,403,998,426.32/216,893.22
  6. Step 6: Final answer
    x = 172,453.52

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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.