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Finding the Fourth Proportional to 266,835.43, 399,611.79 and 152,637.01

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Solution

The fourth proportional to 266,835.43, 399,611.79 and 152,637.01 is: 228,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,835.43 : 399,611.79 = 152,637.01 : x
  2. Step 2: Convert to fraction form
    266,835.43/399,611.79 = 152,637.01/x
  3. Step 3: Cross multiply
    266,835.43x = 399,611.79 × 152,637.01
  4. Step 4: Simplify right side
    266,835.43x = 60,995,549,167.94
  5. Step 5: Solve for x
    x = 60,995,549,167.94/266,835.43
  6. Step 6: Final answer
    x = 228,588.65

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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.