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Finding the Fourth Proportional to 188,290.36, 282,421.87 and 61,929.15

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Solution

The fourth proportional to 188,290.36, 282,421.87 and 61,929.15 is: 92,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,290.36 : 282,421.87 = 61,929.15 : x
  2. Step 2: Convert to fraction form
    188,290.36/282,421.87 = 61,929.15/x
  3. Step 3: Cross multiply
    188,290.36x = 282,421.87 × 61,929.15
  4. Step 4: Simplify right side
    188,290.36x = 17,490,145,136.61
  5. Step 5: Solve for x
    x = 17,490,145,136.61/188,290.36
  6. Step 6: Final answer
    x = 92,889.22

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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.