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Finding the Fourth Proportional to 216,358.10, 298,590.34 and 124,505.54

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Solution

The fourth proportional to 216,358.10, 298,590.34 and 124,505.54 is: 171,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,358.10 : 298,590.34 = 124,505.54 : x
  2. Step 2: Convert to fraction form
    216,358.10/298,590.34 = 124,505.54/x
  3. Step 3: Cross multiply
    216,358.10x = 298,590.34 × 124,505.54
  4. Step 4: Simplify right side
    216,358.10x = 37,176,151,520.48
  5. Step 5: Solve for x
    x = 37,176,151,520.48/216,358.10
  6. Step 6: Final answer
    x = 171,826.95

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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.