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Finding the Fourth Proportional to 236,206.80, 354,358.80 and 78,548.40

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Solution

The fourth proportional to 236,206.80, 354,358.80 and 78,548.40 is: 117,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,206.80 : 354,358.80 = 78,548.40 : x
  2. Step 2: Convert to fraction form
    236,206.80/354,358.80 = 78,548.40/x
  3. Step 3: Cross multiply
    236,206.80x = 354,358.80 × 78,548.40
  4. Step 4: Simplify right side
    236,206.80x = 27,834,316,765.92
  5. Step 5: Solve for x
    x = 27,834,316,765.92/236,206.80
  6. Step 6: Final answer
    x = 117,838.76

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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.