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Finding the Fourth Proportional to 206,730.20, 310,095.30 and 127,933.40

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Solution

The fourth proportional to 206,730.20, 310,095.30 and 127,933.40 is: 191,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,730.20 : 310,095.30 = 127,933.40 : x
  2. Step 2: Convert to fraction form
    206,730.20/310,095.30 = 127,933.40/x
  3. Step 3: Cross multiply
    206,730.20x = 310,095.30 × 127,933.40
  4. Step 4: Simplify right side
    206,730.20x = 39,671,546,053.02
  5. Step 5: Solve for x
    x = 39,671,546,053.02/206,730.20
  6. Step 6: Final answer
    x = 191,900.10

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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.