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Finding the Fourth Proportional to 191,895.60, 287,817.48 and 51,662.64

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Solution

The fourth proportional to 191,895.60, 287,817.48 and 51,662.64 is: 77,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,895.60 : 287,817.48 = 51,662.64 : x
  2. Step 2: Convert to fraction form
    191,895.60/287,817.48 = 51,662.64/x
  3. Step 3: Cross multiply
    191,895.60x = 287,817.48 × 51,662.64
  4. Step 4: Simplify right side
    191,895.60x = 14,869,410,854.95
  5. Step 5: Solve for x
    x = 14,869,410,854.95/191,895.60
  6. Step 6: Final answer
    x = 77,486.98

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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.