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Finding the Fourth Proportional to 77,155.95, 106,464.87 and 44,881.77

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Solution

The fourth proportional to 77,155.95, 106,464.87 and 44,881.77 is: 61,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,155.95 : 106,464.87 = 44,881.77 : x
  2. Step 2: Convert to fraction form
    77,155.95/106,464.87 = 44,881.77/x
  3. Step 3: Cross multiply
    77,155.95x = 106,464.87 × 44,881.77
  4. Step 4: Simplify right side
    77,155.95x = 4,778,331,808.42
  5. Step 5: Solve for x
    x = 4,778,331,808.42/77,155.95
  6. Step 6: Final answer
    x = 61,930.83

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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.