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Finding the Fourth Proportional to 266,045.80, 399,087.90 and 160,637.80

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Solution

The fourth proportional to 266,045.80, 399,087.90 and 160,637.80 is: 240,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,045.80 : 399,087.90 = 160,637.80 : x
  2. Step 2: Convert to fraction form
    266,045.80/399,087.90 = 160,637.80/x
  3. Step 3: Cross multiply
    266,045.80x = 399,087.90 × 160,637.80
  4. Step 4: Simplify right side
    266,045.80x = 64,108,602,262.62
  5. Step 5: Solve for x
    x = 64,108,602,262.62/266,045.80
  6. Step 6: Final answer
    x = 240,968.29

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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.