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Finding the Fourth Proportional to 84,042.76, 115,973.76 and 46,317.28

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Solution

The fourth proportional to 84,042.76, 115,973.76 and 46,317.28 is: 63,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.76 : 115,973.76 = 46,317.28 : x
  2. Step 2: Convert to fraction form
    84,042.76/115,973.76 = 46,317.28/x
  3. Step 3: Cross multiply
    84,042.76x = 115,973.76 × 46,317.28
  4. Step 4: Simplify right side
    84,042.76x = 5,371,589,114.57
  5. Step 5: Solve for x
    x = 5,371,589,114.57/84,042.76
  6. Step 6: Final answer
    x = 63,914.95

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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.