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Finding the Fourth Proportional to 291,155.58, 436,764.96 and 91,482.48

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Solution

The fourth proportional to 291,155.58, 436,764.96 and 91,482.48 is: 137,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,155.58 : 436,764.96 = 91,482.48 : x
  2. Step 2: Convert to fraction form
    291,155.58/436,764.96 = 91,482.48/x
  3. Step 3: Cross multiply
    291,155.58x = 436,764.96 × 91,482.48
  4. Step 4: Simplify right side
    291,155.58x = 39,956,341,717.90
  5. Step 5: Solve for x
    x = 39,956,341,717.90/291,155.58
  6. Step 6: Final answer
    x = 137,233.65

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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.