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Finding the Fourth Proportional to 471,687.04, 707,579.63 and 130,130.48

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Solution

The fourth proportional to 471,687.04, 707,579.63 and 130,130.48 is: 195,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,687.04 : 707,579.63 = 130,130.48 : x
  2. Step 2: Convert to fraction form
    471,687.04/707,579.63 = 130,130.48/x
  3. Step 3: Cross multiply
    471,687.04x = 707,579.63 × 130,130.48
  4. Step 4: Simplify right side
    471,687.04x = 92,077,673,677.55
  5. Step 5: Solve for x
    x = 92,077,673,677.55/471,687.04
  6. Step 6: Final answer
    x = 195,209.25

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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.