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Finding the Fourth Proportional to 94,969.54, 142,461.80 and 31,790.01

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Solution

The fourth proportional to 94,969.54, 142,461.80 and 31,790.01 is: 47,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,969.54 : 142,461.80 = 31,790.01 : x
  2. Step 2: Convert to fraction form
    94,969.54/142,461.80 = 31,790.01/x
  3. Step 3: Cross multiply
    94,969.54x = 142,461.80 × 31,790.01
  4. Step 4: Simplify right side
    94,969.54x = 4,528,862,046.62
  5. Step 5: Solve for x
    x = 4,528,862,046.62/94,969.54
  6. Step 6: Final answer
    x = 47,687.52

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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.