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Finding the Fourth Proportional to 476,608.01, 715,010.16 and 139,659.62

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Solution

The fourth proportional to 476,608.01, 715,010.16 and 139,659.62 is: 209,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,608.01 : 715,010.16 = 139,659.62 : x
  2. Step 2: Convert to fraction form
    476,608.01/715,010.16 = 139,659.62/x
  3. Step 3: Cross multiply
    476,608.01x = 715,010.16 × 139,659.62
  4. Step 4: Simplify right side
    476,608.01x = 99,858,047,241.74
  5. Step 5: Solve for x
    x = 99,858,047,241.74/476,608.01
  6. Step 6: Final answer
    x = 209,518.19

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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.