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Finding the Fourth Proportional to 123,114.88, 169,888.33 and 69,413.10

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Solution

The fourth proportional to 123,114.88, 169,888.33 and 69,413.10 is: 95,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,114.88 : 169,888.33 = 69,413.10 : x
  2. Step 2: Convert to fraction form
    123,114.88/169,888.33 = 69,413.10/x
  3. Step 3: Cross multiply
    123,114.88x = 169,888.33 × 69,413.10
  4. Step 4: Simplify right side
    123,114.88x = 11,792,475,639.12
  5. Step 5: Solve for x
    x = 11,792,475,639.12/123,114.88
  6. Step 6: Final answer
    x = 95,784.32

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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.