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Finding the Fourth Proportional to 54,363.90, 81,448.65 and 46,587.90

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Solution

The fourth proportional to 54,363.90, 81,448.65 and 46,587.90 is: 69,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,363.90 : 81,448.65 = 46,587.90 : x
  2. Step 2: Convert to fraction form
    54,363.90/81,448.65 = 46,587.90/x
  3. Step 3: Cross multiply
    54,363.90x = 81,448.65 × 46,587.90
  4. Step 4: Simplify right side
    54,363.90x = 3,794,521,561.34
  5. Step 5: Solve for x
    x = 3,794,521,561.34/54,363.90
  6. Step 6: Final answer
    x = 69,798.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.