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Finding the Fourth Proportional to 613,279.60, 919,854.70 and 164,045.80

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Solution

The fourth proportional to 613,279.60, 919,854.70 and 164,045.80 is: 246,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,279.60 : 919,854.70 = 164,045.80 : x
  2. Step 2: Convert to fraction form
    613,279.60/919,854.70 = 164,045.80/x
  3. Step 3: Cross multiply
    613,279.60x = 919,854.70 × 164,045.80
  4. Step 4: Simplify right side
    613,279.60x = 150,898,300,884.96
  5. Step 5: Solve for x
    x = 150,898,300,884.96/613,279.60
  6. Step 6: Final answer
    x = 246,051.40

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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.