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Finding the Fourth Proportional to 191,779.14, 287,671.14 and 73,457.58

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Solution

The fourth proportional to 191,779.14, 287,671.14 and 73,457.58 is: 110,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,779.14 : 287,671.14 = 73,457.58 : x
  2. Step 2: Convert to fraction form
    191,779.14/287,671.14 = 73,457.58/x
  3. Step 3: Cross multiply
    191,779.14x = 287,671.14 × 73,457.58
  4. Step 4: Simplify right side
    191,779.14x = 21,131,625,780.24
  5. Step 5: Solve for x
    x = 21,131,625,780.24/191,779.14
  6. Step 6: Final answer
    x = 110,187.30

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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.