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Finding the Fourth Proportional to 576,072.99, 864,109.58 and 155,348.91

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Solution

The fourth proportional to 576,072.99, 864,109.58 and 155,348.91 is: 233,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,072.99 : 864,109.58 = 155,348.91 : x
  2. Step 2: Convert to fraction form
    576,072.99/864,109.58 = 155,348.91/x
  3. Step 3: Cross multiply
    576,072.99x = 864,109.58 × 155,348.91
  4. Step 4: Simplify right side
    576,072.99x = 134,238,480,596.81
  5. Step 5: Solve for x
    x = 134,238,480,596.81/576,072.99
  6. Step 6: Final answer
    x = 233,023.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.