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Finding the Fourth Proportional to 266,103.88, 399,358.86 and 97,783.72

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Solution

The fourth proportional to 266,103.88, 399,358.86 and 97,783.72 is: 146,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,103.88 : 399,358.86 = 97,783.72 : x
  2. Step 2: Convert to fraction form
    266,103.88/399,358.86 = 97,783.72/x
  3. Step 3: Cross multiply
    266,103.88x = 399,358.86 × 97,783.72
  4. Step 4: Simplify right side
    266,103.88x = 39,050,794,945.76
  5. Step 5: Solve for x
    x = 39,050,794,945.76/266,103.88
  6. Step 6: Final answer
    x = 146,750.19

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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.