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Finding the Fourth Proportional to 245,445.93, 368,173.49 and 76,962.56

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Solution

The fourth proportional to 245,445.93, 368,173.49 and 76,962.56 is: 115,445.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,445.93 : 368,173.49 = 76,962.56 : x
  2. Step 2: Convert to fraction form
    245,445.93/368,173.49 = 76,962.56/x
  3. Step 3: Cross multiply
    245,445.93x = 368,173.49 × 76,962.56
  4. Step 4: Simplify right side
    245,445.93x = 28,335,572,088.85
  5. Step 5: Solve for x
    x = 28,335,572,088.85/245,445.93
  6. Step 6: Final answer
    x = 115,445.27

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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.