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Finding the Fourth Proportional to 191,792.85, 287,688.87 and 51,551.48

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Solution

The fourth proportional to 191,792.85, 287,688.87 and 51,551.48 is: 77,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,792.85 : 287,688.87 = 51,551.48 : x
  2. Step 2: Convert to fraction form
    191,792.85/287,688.87 = 51,551.48/x
  3. Step 3: Cross multiply
    191,792.85x = 287,688.87 × 51,551.48
  4. Step 4: Simplify right side
    191,792.85x = 14,830,785,589.58
  5. Step 5: Solve for x
    x = 14,830,785,589.58/191,792.85
  6. Step 6: Final answer
    x = 77,327.10

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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.