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Finding the Fourth Proportional to 157,413.98, 217,224.94 and 85,792.46

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Solution

The fourth proportional to 157,413.98, 217,224.94 and 85,792.46 is: 118,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,413.98 : 217,224.94 = 85,792.46 : x
  2. Step 2: Convert to fraction form
    157,413.98/217,224.94 = 85,792.46/x
  3. Step 3: Cross multiply
    157,413.98x = 217,224.94 × 85,792.46
  4. Step 4: Simplify right side
    157,413.98x = 18,636,261,975.95
  5. Step 5: Solve for x
    x = 18,636,261,975.95/157,413.98
  6. Step 6: Final answer
    x = 118,390.13

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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.