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Finding the Fourth Proportional to 77,464.63, 106,901.19 and 43,930.63

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Solution

The fourth proportional to 77,464.63, 106,901.19 and 43,930.63 is: 60,624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,464.63 : 106,901.19 = 43,930.63 : x
  2. Step 2: Convert to fraction form
    77,464.63/106,901.19 = 43,930.63/x
  3. Step 3: Cross multiply
    77,464.63x = 106,901.19 × 43,930.63
  4. Step 4: Simplify right side
    77,464.63x = 4,696,235,870.29
  5. Step 5: Solve for x
    x = 4,696,235,870.29/77,464.63
  6. Step 6: Final answer
    x = 60,624.26

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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.