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Finding the Fourth Proportional to 368,716.44, 553,246.89 and 191,126.57

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Solution

The fourth proportional to 368,716.44, 553,246.89 and 191,126.57 is: 286,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,716.44 : 553,246.89 = 191,126.57 : x
  2. Step 2: Convert to fraction form
    368,716.44/553,246.89 = 191,126.57/x
  3. Step 3: Cross multiply
    368,716.44x = 553,246.89 × 191,126.57
  4. Step 4: Simplify right side
    368,716.44x = 105,740,180,448.87
  5. Step 5: Solve for x
    x = 105,740,180,448.87/368,716.44
  6. Step 6: Final answer
    x = 286,779.13

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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.