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Finding the Fourth Proportional to 72,201.07, 108,302.06 and 47,262.06

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Solution

The fourth proportional to 72,201.07, 108,302.06 and 47,262.06 is: 70,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,201.07 : 108,302.06 = 47,262.06 : x
  2. Step 2: Convert to fraction form
    72,201.07/108,302.06 = 47,262.06/x
  3. Step 3: Cross multiply
    72,201.07x = 108,302.06 × 47,262.06
  4. Step 4: Simplify right side
    72,201.07x = 5,118,578,271.40
  5. Step 5: Solve for x
    x = 5,118,578,271.40/72,201.07
  6. Step 6: Final answer
    x = 70,893.38

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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.