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Finding the Fourth Proportional to 353,186.60, 529,779.90 and 153,602.60

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Solution

The fourth proportional to 353,186.60, 529,779.90 and 153,602.60 is: 230,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,186.60 : 529,779.90 = 153,602.60 : x
  2. Step 2: Convert to fraction form
    353,186.60/529,779.90 = 153,602.60/x
  3. Step 3: Cross multiply
    353,186.60x = 529,779.90 × 153,602.60
  4. Step 4: Simplify right side
    353,186.60x = 81,375,570,067.74
  5. Step 5: Solve for x
    x = 81,375,570,067.74/353,186.60
  6. Step 6: Final answer
    x = 230,403.90

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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.