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Finding the Fourth Proportional to 223,886.60, 335,829.90 and 66,114.80

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Solution

The fourth proportional to 223,886.60, 335,829.90 and 66,114.80 is: 99,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,886.60 : 335,829.90 = 66,114.80 : x
  2. Step 2: Convert to fraction form
    223,886.60/335,829.90 = 66,114.80/x
  3. Step 3: Cross multiply
    223,886.60x = 335,829.90 × 66,114.80
  4. Step 4: Simplify right side
    223,886.60x = 22,203,326,672.52
  5. Step 5: Solve for x
    x = 22,203,326,672.52/223,886.60
  6. Step 6: Final answer
    x = 99,172.20

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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.