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Finding the Fourth Proportional to 104,335.48, 143,935.14 and 61,878.52

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Solution

The fourth proportional to 104,335.48, 143,935.14 and 61,878.52 is: 85,364.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,335.48 : 143,935.14 = 61,878.52 : x
  2. Step 2: Convert to fraction form
    104,335.48/143,935.14 = 61,878.52/x
  3. Step 3: Cross multiply
    104,335.48x = 143,935.14 × 61,878.52
  4. Step 4: Simplify right side
    104,335.48x = 8,906,493,439.19
  5. Step 5: Solve for x
    x = 8,906,493,439.19/104,335.48
  6. Step 6: Final answer
    x = 85,364.00

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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.