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Finding the Fourth Proportional to 231,345.90, 347,055.30 and 73,590.30

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Solution

The fourth proportional to 231,345.90, 347,055.30 and 73,590.30 is: 110,397.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,345.90 : 347,055.30 = 73,590.30 : x
  2. Step 2: Convert to fraction form
    231,345.90/347,055.30 = 73,590.30/x
  3. Step 3: Cross multiply
    231,345.90x = 347,055.30 × 73,590.30
  4. Step 4: Simplify right side
    231,345.90x = 25,539,903,643.59
  5. Step 5: Solve for x
    x = 25,539,903,643.59/231,345.90
  6. Step 6: Final answer
    x = 110,397.04

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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.