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Finding the Fourth Proportional to 369,301.86, 553,755.96 and 191,629.98

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Solution

The fourth proportional to 369,301.86, 553,755.96 and 191,629.98 is: 287,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,301.86 : 553,755.96 = 191,629.98 : x
  2. Step 2: Convert to fraction form
    369,301.86/553,755.96 = 191,629.98/x
  3. Step 3: Cross multiply
    369,301.86x = 553,755.96 × 191,629.98
  4. Step 4: Simplify right side
    369,301.86x = 106,116,243,539.68
  5. Step 5: Solve for x
    x = 106,116,243,539.68/369,301.86
  6. Step 6: Final answer
    x = 287,342.84

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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.