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Finding the Fourth Proportional to 188,312.79, 282,438.01 and 61,954.60

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Solution

The fourth proportional to 188,312.79, 282,438.01 and 61,954.60 is: 92,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,312.79 : 282,438.01 = 61,954.60 : x
  2. Step 2: Convert to fraction form
    188,312.79/282,438.01 = 61,954.60/x
  3. Step 3: Cross multiply
    188,312.79x = 282,438.01 × 61,954.60
  4. Step 4: Simplify right side
    188,312.79x = 17,498,332,823.10
  5. Step 5: Solve for x
    x = 17,498,332,823.10/188,312.79
  6. Step 6: Final answer
    x = 92,921.64

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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.