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Finding the Fourth Proportional to 245,704.72, 368,539.30 and 77,273.22

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Solution

The fourth proportional to 245,704.72, 368,539.30 and 77,273.22 is: 115,904.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,704.72 : 368,539.30 = 77,273.22 : x
  2. Step 2: Convert to fraction form
    245,704.72/368,539.30 = 77,273.22/x
  3. Step 3: Cross multiply
    245,704.72x = 368,539.30 × 77,273.22
  4. Step 4: Simplify right side
    245,704.72x = 28,478,219,886.16
  5. Step 5: Solve for x
    x = 28,478,219,886.16/245,704.72
  6. Step 6: Final answer
    x = 115,904.25

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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.