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Finding the Fourth Proportional to 188,291.40, 282,437.10 and 63,630.60

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Solution

The fourth proportional to 188,291.40, 282,437.10 and 63,630.60 is: 95,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,291.40 : 282,437.10 = 63,630.60 : x
  2. Step 2: Convert to fraction form
    188,291.40/282,437.10 = 63,630.60/x
  3. Step 3: Cross multiply
    188,291.40x = 282,437.10 × 63,630.60
  4. Step 4: Simplify right side
    188,291.40x = 17,971,642,135.26
  5. Step 5: Solve for x
    x = 17,971,642,135.26/188,291.40
  6. Step 6: Final answer
    x = 95,445.90

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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.