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Finding the Fourth Proportional to 352,089.77, 528,002.03 and 127,394.64

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Solution

The fourth proportional to 352,089.77, 528,002.03 and 127,394.64 is: 191,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,089.77 : 528,002.03 = 127,394.64 : x
  2. Step 2: Convert to fraction form
    352,089.77/528,002.03 = 127,394.64/x
  3. Step 3: Cross multiply
    352,089.77x = 528,002.03 × 127,394.64
  4. Step 4: Simplify right side
    352,089.77x = 67,264,628,849.61
  5. Step 5: Solve for x
    x = 67,264,628,849.61/352,089.77
  6. Step 6: Final answer
    x = 191,043.98

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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.