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Finding the Fourth Proportional to 94,134, 141,218.40 and 30,957.60

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Solution

The fourth proportional to 94,134, 141,218.40 and 30,957.60 is: 46,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,134 : 141,218.40 = 30,957.60 : x
  2. Step 2: Convert to fraction form
    94,134/141,218.40 = 30,957.60/x
  3. Step 3: Cross multiply
    94,134x = 141,218.40 × 30,957.60
  4. Step 4: Simplify right side
    94,134x = 4,371,782,739.84
  5. Step 5: Solve for x
    x = 4,371,782,739.84/94,134
  6. Step 6: Final answer
    x = 46,442.12

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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.