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Finding the Fourth Proportional to 434,637.91, 651,949.94 and 119,094.82

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Solution

The fourth proportional to 434,637.91, 651,949.94 and 119,094.82 is: 178,640.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,637.91 : 651,949.94 = 119,094.82 : x
  2. Step 2: Convert to fraction form
    434,637.91/651,949.94 = 119,094.82/x
  3. Step 3: Cross multiply
    434,637.91x = 651,949.94 × 119,094.82
  4. Step 4: Simplify right side
    434,637.91x = 77,643,860,753.31
  5. Step 5: Solve for x
    x = 77,643,860,753.31/434,637.91
  6. Step 6: Final answer
    x = 178,640.33

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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.