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Finding the Fourth Proportional to 570,369.04, 855,551.23 and 143,905.86

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Solution

The fourth proportional to 570,369.04, 855,551.23 and 143,905.86 is: 215,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,369.04 : 855,551.23 = 143,905.86 : x
  2. Step 2: Convert to fraction form
    570,369.04/855,551.23 = 143,905.86/x
  3. Step 3: Cross multiply
    570,369.04x = 855,551.23 × 143,905.86
  4. Step 4: Simplify right side
    570,369.04x = 123,118,835,167.44
  5. Step 5: Solve for x
    x = 123,118,835,167.44/570,369.04
  6. Step 6: Final answer
    x = 215,858.20

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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.