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Finding the Fourth Proportional to 356,915.01, 534,658.71 and 214,681.77

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Solution

The fourth proportional to 356,915.01, 534,658.71 and 214,681.77 is: 321,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,915.01 : 534,658.71 = 214,681.77 : x
  2. Step 2: Convert to fraction form
    356,915.01/534,658.71 = 214,681.77/x
  3. Step 3: Cross multiply
    356,915.01x = 534,658.71 × 214,681.77
  4. Step 4: Simplify right side
    356,915.01x = 114,781,478,208.72
  5. Step 5: Solve for x
    x = 114,781,478,208.72/356,915.01
  6. Step 6: Final answer
    x = 321,593.31

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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.