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Finding the Fourth Proportional to 92,699.06, 127,931.25 and 52,413.21

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Solution

The fourth proportional to 92,699.06, 127,931.25 and 52,413.21 is: 72,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,699.06 : 127,931.25 = 52,413.21 : x
  2. Step 2: Convert to fraction form
    92,699.06/127,931.25 = 52,413.21/x
  3. Step 3: Cross multiply
    92,699.06x = 127,931.25 × 52,413.21
  4. Step 4: Simplify right side
    92,699.06x = 6,705,287,471.81
  5. Step 5: Solve for x
    x = 6,705,287,471.81/92,699.06
  6. Step 6: Final answer
    x = 72,333.94

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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.