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Finding the Fourth Proportional to 340,608.86, 470,036.15 and 187,644.01

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Solution

The fourth proportional to 340,608.86, 470,036.15 and 187,644.01 is: 258,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,608.86 : 470,036.15 = 187,644.01 : x
  2. Step 2: Convert to fraction form
    340,608.86/470,036.15 = 187,644.01/x
  3. Step 3: Cross multiply
    340,608.86x = 470,036.15 × 187,644.01
  4. Step 4: Simplify right side
    340,608.86x = 88,199,465,680.78
  5. Step 5: Solve for x
    x = 88,199,465,680.78/340,608.86
  6. Step 6: Final answer
    x = 258,946.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.