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Finding the Fourth Proportional to 231,602.70, 347,404.05 and 65,390.70

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Solution

The fourth proportional to 231,602.70, 347,404.05 and 65,390.70 is: 98,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,602.70 : 347,404.05 = 65,390.70 : x
  2. Step 2: Convert to fraction form
    231,602.70/347,404.05 = 65,390.70/x
  3. Step 3: Cross multiply
    231,602.70x = 347,404.05 × 65,390.70
  4. Step 4: Simplify right side
    231,602.70x = 22,716,994,012.34
  5. Step 5: Solve for x
    x = 22,716,994,012.34/231,602.70
  6. Step 6: Final answer
    x = 98,086.05

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1.5x scale

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.