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Finding the Fourth Proportional to 266,064.41, 367,165.91 and 145,210.79

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Solution

The fourth proportional to 266,064.41, 367,165.91 and 145,210.79 is: 200,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,064.41 : 367,165.91 = 145,210.79 : x
  2. Step 2: Convert to fraction form
    266,064.41/367,165.91 = 145,210.79/x
  3. Step 3: Cross multiply
    266,064.41x = 367,165.91 × 145,210.79
  4. Step 4: Simplify right side
    266,064.41x = 53,316,453,133.11
  5. Step 5: Solve for x
    x = 53,316,453,133.11/266,064.41
  6. Step 6: Final answer
    x = 200,389.27

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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.