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Finding the Fourth Proportional to 77,999.95, 107,639.95 and 44,015.66

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Solution

The fourth proportional to 77,999.95, 107,639.95 and 44,015.66 is: 60,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,999.95 : 107,639.95 = 44,015.66 : x
  2. Step 2: Convert to fraction form
    77,999.95/107,639.95 = 44,015.66/x
  3. Step 3: Cross multiply
    77,999.95x = 107,639.95 × 44,015.66
  4. Step 4: Simplify right side
    77,999.95x = 4,737,842,903.42
  5. Step 5: Solve for x
    x = 4,737,842,903.42/77,999.95
  6. Step 6: Final answer
    x = 60,741.62

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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.