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Finding the Fourth Proportional to 78,954.88, 118,477.12 and 29,028.48

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Solution

The fourth proportional to 78,954.88, 118,477.12 and 29,028.48 is: 43,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,954.88 : 118,477.12 = 29,028.48 : x
  2. Step 2: Convert to fraction form
    78,954.88/118,477.12 = 29,028.48/x
  3. Step 3: Cross multiply
    78,954.88x = 118,477.12 × 29,028.48
  4. Step 4: Simplify right side
    78,954.88x = 3,439,210,708.38
  5. Step 5: Solve for x
    x = 3,439,210,708.38/78,954.88
  6. Step 6: Final answer
    x = 43,559.19

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1.5x scale

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.