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Finding the Fourth Proportional to 163,906.90, 245,422.95 and 163,906.90

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Solution

The fourth proportional to 163,906.90, 245,422.95 and 163,906.90 is: 245,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,906.90 : 245,422.95 = 163,906.90 : x
  2. Step 2: Convert to fraction form
    163,906.90/245,422.95 = 163,906.90/x
  3. Step 3: Cross multiply
    163,906.90x = 245,422.95 × 163,906.90
  4. Step 4: Simplify right side
    163,906.90x = 40,226,514,923.36
  5. Step 5: Solve for x
    x = 40,226,514,923.36/163,906.90
  6. Step 6: Final answer
    x = 245,422.95

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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.