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Finding the Fourth Proportional to 84,043.70, 115,980.30 and 46,317.94

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Solution

The fourth proportional to 84,043.70, 115,980.30 and 46,317.94 is: 63,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,043.70 : 115,980.30 = 46,317.94 : x
  2. Step 2: Convert to fraction form
    84,043.70/115,980.30 = 46,317.94/x
  3. Step 3: Cross multiply
    84,043.70x = 115,980.30 × 46,317.94
  4. Step 4: Simplify right side
    84,043.70x = 5,371,968,576.58
  5. Step 5: Solve for x
    x = 5,371,968,576.58/84,043.70
  6. Step 6: Final answer
    x = 63,918.75

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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.