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Finding the Fourth Proportional to 186,078.20, 260,859.40 and 186,078.20

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Solution

The fourth proportional to 186,078.20, 260,859.40 and 186,078.20 is: 260,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,078.20 : 260,859.40 = 186,078.20 : x
  2. Step 2: Convert to fraction form
    186,078.20/260,859.40 = 186,078.20/x
  3. Step 3: Cross multiply
    186,078.20x = 260,859.40 × 186,078.20
  4. Step 4: Simplify right side
    186,078.20x = 48,540,247,605.08
  5. Step 5: Solve for x
    x = 48,540,247,605.08/186,078.20
  6. Step 6: Final answer
    x = 260,859.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.