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Finding the Fourth Proportional to 236,808.40, 355,126.20 and 118,440.40

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Solution

The fourth proportional to 236,808.40, 355,126.20 and 118,440.40 is: 177,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,808.40 : 355,126.20 = 118,440.40 : x
  2. Step 2: Convert to fraction form
    236,808.40/355,126.20 = 118,440.40/x
  3. Step 3: Cross multiply
    236,808.40x = 355,126.20 × 118,440.40
  4. Step 4: Simplify right side
    236,808.40x = 42,061,289,178.48
  5. Step 5: Solve for x
    x = 42,061,289,178.48/236,808.40
  6. Step 6: Final answer
    x = 177,617.39

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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.