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Finding the Fourth Proportional to 236,814.60, 355,221.90 and 70,602.60

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Solution

The fourth proportional to 236,814.60, 355,221.90 and 70,602.60 is: 105,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,814.60 : 355,221.90 = 70,602.60 : x
  2. Step 2: Convert to fraction form
    236,814.60/355,221.90 = 70,602.60/x
  3. Step 3: Cross multiply
    236,814.60x = 355,221.90 × 70,602.60
  4. Step 4: Simplify right side
    236,814.60x = 25,079,589,716.94
  5. Step 5: Solve for x
    x = 25,079,589,716.94/236,814.60
  6. Step 6: Final answer
    x = 105,903.90

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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.