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Finding the Fourth Proportional to 192,054.30, 288,081.45 and 186,870.30

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Solution

The fourth proportional to 192,054.30, 288,081.45 and 186,870.30 is: 280,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,054.30 : 288,081.45 = 186,870.30 : x
  2. Step 2: Convert to fraction form
    192,054.30/288,081.45 = 186,870.30/x
  3. Step 3: Cross multiply
    192,054.30x = 288,081.45 × 186,870.30
  4. Step 4: Simplify right side
    192,054.30x = 53,833,866,985.94
  5. Step 5: Solve for x
    x = 53,833,866,985.94/192,054.30
  6. Step 6: Final answer
    x = 280,305.45

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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.