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Finding the Fourth Proportional to 216,031.91, 298,076.31 and 125,335.34

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Solution

The fourth proportional to 216,031.91, 298,076.31 and 125,335.34 is: 172,935.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,031.91 : 298,076.31 = 125,335.34 : x
  2. Step 2: Convert to fraction form
    216,031.91/298,076.31 = 125,335.34/x
  3. Step 3: Cross multiply
    216,031.91x = 298,076.31 × 125,335.34
  4. Step 4: Simplify right side
    216,031.91x = 37,359,495,659.80
  5. Step 5: Solve for x
    x = 37,359,495,659.80/216,031.91
  6. Step 6: Final answer
    x = 172,935.08

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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.