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Finding the Fourth Proportional to 245,153.98, 367,804.82 and 87,361.93

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Solution

The fourth proportional to 245,153.98, 367,804.82 and 87,361.93 is: 131,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,153.98 : 367,804.82 = 87,361.93 : x
  2. Step 2: Convert to fraction form
    245,153.98/367,804.82 = 87,361.93/x
  3. Step 3: Cross multiply
    245,153.98x = 367,804.82 × 87,361.93
  4. Step 4: Simplify right side
    245,153.98x = 32,132,138,938.50
  5. Step 5: Solve for x
    x = 32,132,138,938.50/245,153.98
  6. Step 6: Final answer
    x = 131,069.21

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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.