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Finding the Fourth Proportional to 208,327.51, 287,486.58 and 117,692.83

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Solution

The fourth proportional to 208,327.51, 287,486.58 and 117,692.83 is: 162,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,327.51 : 287,486.58 = 117,692.83 : x
  2. Step 2: Convert to fraction form
    208,327.51/287,486.58 = 117,692.83/x
  3. Step 3: Cross multiply
    208,327.51x = 287,486.58 × 117,692.83
  4. Step 4: Simplify right side
    208,327.51x = 33,835,109,187.22
  5. Step 5: Solve for x
    x = 33,835,109,187.22/208,327.51
  6. Step 6: Final answer
    x = 162,413.06

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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.