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Finding the Fourth Proportional to 191,791.42, 287,686.71 and 51,550.04

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Solution

The fourth proportional to 191,791.42, 287,686.71 and 51,550.04 is: 77,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,791.42 : 287,686.71 = 51,550.04 : x
  2. Step 2: Convert to fraction form
    191,791.42/287,686.71 = 51,550.04/x
  3. Step 3: Cross multiply
    191,791.42x = 287,686.71 × 51,550.04
  4. Step 4: Simplify right side
    191,791.42x = 14,830,261,407.97
  5. Step 5: Solve for x
    x = 14,830,261,407.97/191,791.42
  6. Step 6: Final answer
    x = 77,324.95

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1.5x scale

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.