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Finding the Fourth Proportional to 104,807.32, 144,633.40 and 57,060.65

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Solution

The fourth proportional to 104,807.32, 144,633.40 and 57,060.65 is: 78,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,807.32 : 144,633.40 = 57,060.65 : x
  2. Step 2: Convert to fraction form
    104,807.32/144,633.40 = 57,060.65/x
  3. Step 3: Cross multiply
    104,807.32x = 144,633.40 × 57,060.65
  4. Step 4: Simplify right side
    104,807.32x = 8,252,876,034.64
  5. Step 5: Solve for x
    x = 8,252,876,034.64/104,807.32
  6. Step 6: Final answer
    x = 78,743.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.