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Finding the Fourth Proportional to 572,814.78, 859,245.21 and 152,094.30

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Solution

The fourth proportional to 572,814.78, 859,245.21 and 152,094.30 is: 228,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,814.78 : 859,245.21 = 152,094.30 : x
  2. Step 2: Convert to fraction form
    572,814.78/859,245.21 = 152,094.30/x
  3. Step 3: Cross multiply
    572,814.78x = 859,245.21 × 152,094.30
  4. Step 4: Simplify right side
    572,814.78x = 130,686,298,743.30
  5. Step 5: Solve for x
    x = 130,686,298,743.30/572,814.78
  6. Step 6: Final answer
    x = 228,147.57

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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.