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Finding the Fourth Proportional to 489,186.20, 733,779.30 and 173,602.10

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Solution

The fourth proportional to 489,186.20, 733,779.30 and 173,602.10 is: 260,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,186.20 : 733,779.30 = 173,602.10 : x
  2. Step 2: Convert to fraction form
    489,186.20/733,779.30 = 173,602.10/x
  3. Step 3: Cross multiply
    489,186.20x = 733,779.30 × 173,602.10
  4. Step 4: Simplify right side
    489,186.20x = 127,385,627,416.53
  5. Step 5: Solve for x
    x = 127,385,627,416.53/489,186.20
  6. Step 6: Final answer
    x = 260,403.15

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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.