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Finding the Fourth Proportional to 83,980.77, 115,893.45 and 46,255.02

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Solution

The fourth proportional to 83,980.77, 115,893.45 and 46,255.02 is: 63,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,980.77 : 115,893.45 = 46,255.02 : x
  2. Step 2: Convert to fraction form
    83,980.77/115,893.45 = 46,255.02/x
  3. Step 3: Cross multiply
    83,980.77x = 115,893.45 × 46,255.02
  4. Step 4: Simplify right side
    83,980.77x = 5,360,653,413.02
  5. Step 5: Solve for x
    x = 5,360,653,413.02/83,980.77
  6. Step 6: Final answer
    x = 63,831.92

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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.