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Finding the Fourth Proportional to 630,149.80, 944,898.30 and 186,860.20

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Solution

The fourth proportional to 630,149.80, 944,898.30 and 186,860.20 is: 280,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,149.80 : 944,898.30 = 186,860.20 : x
  2. Step 2: Convert to fraction form
    630,149.80/944,898.30 = 186,860.20/x
  3. Step 3: Cross multiply
    630,149.80x = 944,898.30 × 186,860.20
  4. Step 4: Simplify right side
    630,149.80x = 176,563,885,317.66
  5. Step 5: Solve for x
    x = 176,563,885,317.66/630,149.80
  6. Step 6: Final answer
    x = 280,193.51

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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.