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Finding the Fourth Proportional to 630,112.80, 944,842.80 and 186,823.20

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Solution

The fourth proportional to 630,112.80, 944,842.80 and 186,823.20 is: 280,138.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,112.80 : 944,842.80 = 186,823.20 : x
  2. Step 2: Convert to fraction form
    630,112.80/944,842.80 = 186,823.20/x
  3. Step 3: Cross multiply
    630,112.80x = 944,842.80 × 186,823.20
  4. Step 4: Simplify right side
    630,112.80x = 176,518,555,392.96
  5. Step 5: Solve for x
    x = 176,518,555,392.96/630,112.80
  6. Step 6: Final answer
    x = 280,138.03

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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.