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Finding the Fourth Proportional to 266,253.56, 367,430.58 and 145,395.80

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Solution

The fourth proportional to 266,253.56, 367,430.58 and 145,395.80 is: 200,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,253.56 : 367,430.58 = 145,395.80 : x
  2. Step 2: Convert to fraction form
    266,253.56/367,430.58 = 145,395.80/x
  3. Step 3: Cross multiply
    266,253.56x = 367,430.58 × 145,395.80
  4. Step 4: Simplify right side
    266,253.56x = 53,422,863,123.56
  5. Step 5: Solve for x
    x = 53,422,863,123.56/266,253.56
  6. Step 6: Final answer
    x = 200,646.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.