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Finding the Fourth Proportional to 266,061.51, 367,164.90 and 198,136.80

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Solution

The fourth proportional to 266,061.51, 367,164.90 and 198,136.80 is: 273,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,061.51 : 367,164.90 = 198,136.80 : x
  2. Step 2: Convert to fraction form
    266,061.51/367,164.90 = 198,136.80/x
  3. Step 3: Cross multiply
    266,061.51x = 367,164.90 × 198,136.80
  4. Step 4: Simplify right side
    266,061.51x = 72,748,878,358.32
  5. Step 5: Solve for x
    x = 72,748,878,358.32/266,061.51
  6. Step 6: Final answer
    x = 273,428.80

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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.