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Finding the Fourth Proportional to 266,321.60, 367,526.80 and 145,466.48

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Solution

The fourth proportional to 266,321.60, 367,526.80 and 145,466.48 is: 200,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,321.60 : 367,526.80 = 145,466.48 : x
  2. Step 2: Convert to fraction form
    266,321.60/367,526.80 = 145,466.48/x
  3. Step 3: Cross multiply
    266,321.60x = 367,526.80 × 145,466.48
  4. Step 4: Simplify right side
    266,321.60x = 53,462,829,901.66
  5. Step 5: Solve for x
    x = 53,462,829,901.66/266,321.60
  6. Step 6: Final answer
    x = 200,745.38

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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.