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Finding the Fourth Proportional to 581,110.82, 871,685.90 and 154,647.07

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Solution

The fourth proportional to 581,110.82, 871,685.90 and 154,647.07 is: 231,975.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,110.82 : 871,685.90 = 154,647.07 : x
  2. Step 2: Convert to fraction form
    581,110.82/871,685.90 = 154,647.07/x
  3. Step 3: Cross multiply
    581,110.82x = 871,685.90 × 154,647.07
  4. Step 4: Simplify right side
    581,110.82x = 134,803,670,395.31
  5. Step 5: Solve for x
    x = 134,803,670,395.31/581,110.82
  6. Step 6: Final answer
    x = 231,975.84

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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.