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Finding the Fourth Proportional to 105,899.63, 146,154.44 and 61,187.63

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Solution

The fourth proportional to 105,899.63, 146,154.44 and 61,187.63 is: 84,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,899.63 : 146,154.44 = 61,187.63 : x
  2. Step 2: Convert to fraction form
    105,899.63/146,154.44 = 61,187.63/x
  3. Step 3: Cross multiply
    105,899.63x = 146,154.44 × 61,187.63
  4. Step 4: Simplify right side
    105,899.63x = 8,942,843,219.77
  5. Step 5: Solve for x
    x = 8,942,843,219.77/105,899.63
  6. Step 6: Final answer
    x = 84,446.41

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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.