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Finding the Fourth Proportional to 186,893.40, 280,340.10 and 163,565.40

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Solution

The fourth proportional to 186,893.40, 280,340.10 and 163,565.40 is: 245,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,893.40 : 280,340.10 = 163,565.40 : x
  2. Step 2: Convert to fraction form
    186,893.40/280,340.10 = 163,565.40/x
  3. Step 3: Cross multiply
    186,893.40x = 280,340.10 × 163,565.40
  4. Step 4: Simplify right side
    186,893.40x = 45,853,940,592.54
  5. Step 5: Solve for x
    x = 45,853,940,592.54/186,893.40
  6. Step 6: Final answer
    x = 245,348.10

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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.