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Finding the Fourth Proportional to 266,365.84, 399,473.84 and 74,196.58

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Solution

The fourth proportional to 266,365.84, 399,473.84 and 74,196.58 is: 111,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,365.84 : 399,473.84 = 74,196.58 : x
  2. Step 2: Convert to fraction form
    266,365.84/399,473.84 = 74,196.58/x
  3. Step 3: Cross multiply
    266,365.84x = 399,473.84 × 74,196.58
  4. Step 4: Simplify right side
    266,365.84x = 29,639,592,727.47
  5. Step 5: Solve for x
    x = 29,639,592,727.47/266,365.84
  6. Step 6: Final answer
    x = 111,274.00

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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.