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Finding the Fourth Proportional to 208,077.01, 287,115.48 and 126,362.77

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Solution

The fourth proportional to 208,077.01, 287,115.48 and 126,362.77 is: 174,361.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,077.01 : 287,115.48 = 126,362.77 : x
  2. Step 2: Convert to fraction form
    208,077.01/287,115.48 = 126,362.77/x
  3. Step 3: Cross multiply
    208,077.01x = 287,115.48 × 126,362.77
  4. Step 4: Simplify right side
    208,077.01x = 36,280,706,644.89
  5. Step 5: Solve for x
    x = 36,280,706,644.89/208,077.01
  6. Step 6: Final answer
    x = 174,361.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.