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Finding the Fourth Proportional to 291,356.15, 437,089.35 and 113,851.94

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Solution

The fourth proportional to 291,356.15, 437,089.35 and 113,851.94 is: 170,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,356.15 : 437,089.35 = 113,851.94 : x
  2. Step 2: Convert to fraction form
    291,356.15/437,089.35 = 113,851.94/x
  3. Step 3: Cross multiply
    291,356.15x = 437,089.35 × 113,851.94
  4. Step 4: Simplify right side
    291,356.15x = 49,763,470,450.84
  5. Step 5: Solve for x
    x = 49,763,470,450.84/291,356.15
  6. Step 6: Final answer
    x = 170,799.45

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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.