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Finding the Fourth Proportional to 191,907.08, 287,869.26 and 58,777.64

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Solution

The fourth proportional to 191,907.08, 287,869.26 and 58,777.64 is: 88,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,907.08 : 287,869.26 = 58,777.64 : x
  2. Step 2: Convert to fraction form
    191,907.08/287,869.26 = 58,777.64/x
  3. Step 3: Cross multiply
    191,907.08x = 287,869.26 × 58,777.64
  4. Step 4: Simplify right side
    191,907.08x = 16,920,275,731.35
  5. Step 5: Solve for x
    x = 16,920,275,731.35/191,907.08
  6. Step 6: Final answer
    x = 88,169.11

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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.