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Finding the Fourth Proportional to 104,336.73, 143,986.65 and 64,030.32

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Solution

The fourth proportional to 104,336.73, 143,986.65 and 64,030.32 is: 88,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,336.73 : 143,986.65 = 64,030.32 : x
  2. Step 2: Convert to fraction form
    104,336.73/143,986.65 = 64,030.32/x
  3. Step 3: Cross multiply
    104,336.73x = 143,986.65 × 64,030.32
  4. Step 4: Simplify right side
    104,336.73x = 9,219,511,275.23
  5. Step 5: Solve for x
    x = 9,219,511,275.23/104,336.73
  6. Step 6: Final answer
    x = 88,363.05

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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.