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Finding the Fourth Proportional to 266,777.80, 368,156.22 and 145,916.49

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Solution

The fourth proportional to 266,777.80, 368,156.22 and 145,916.49 is: 201,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,777.80 : 368,156.22 = 145,916.49 : x
  2. Step 2: Convert to fraction form
    266,777.80/368,156.22 = 145,916.49/x
  3. Step 3: Cross multiply
    266,777.80x = 368,156.22 × 145,916.49
  4. Step 4: Simplify right side
    266,777.80x = 53,720,064,227.47
  5. Step 5: Solve for x
    x = 53,720,064,227.47/266,777.80
  6. Step 6: Final answer
    x = 201,366.32

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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.