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Finding the Fourth Proportional to 109,714.51, 151,405.14 and 59,413.51

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Solution

The fourth proportional to 109,714.51, 151,405.14 and 59,413.51 is: 81,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,714.51 : 151,405.14 = 59,413.51 : x
  2. Step 2: Convert to fraction form
    109,714.51/151,405.14 = 59,413.51/x
  3. Step 3: Cross multiply
    109,714.51x = 151,405.14 × 59,413.51
  4. Step 4: Simplify right side
    109,714.51x = 8,995,510,799.44
  5. Step 5: Solve for x
    x = 8,995,510,799.44/109,714.51
  6. Step 6: Final answer
    x = 81,990.17

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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.