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Finding the Fourth Proportional to 325,362.18, 487,862.20 and 100,660.08

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Solution

The fourth proportional to 325,362.18, 487,862.20 and 100,660.08 is: 150,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,362.18 : 487,862.20 = 100,660.08 : x
  2. Step 2: Convert to fraction form
    325,362.18/487,862.20 = 100,660.08/x
  3. Step 3: Cross multiply
    325,362.18x = 487,862.20 × 100,660.08
  4. Step 4: Simplify right side
    325,362.18x = 49,108,248,080.98
  5. Step 5: Solve for x
    x = 49,108,248,080.98/325,362.18
  6. Step 6: Final answer
    x = 150,934.10

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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.