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Finding the Fourth Proportional to 578,787.67, 868,241.63 and 158,063.50

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Solution

The fourth proportional to 578,787.67, 868,241.63 and 158,063.50 is: 237,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,787.67 : 868,241.63 = 158,063.50 : x
  2. Step 2: Convert to fraction form
    578,787.67/868,241.63 = 158,063.50/x
  3. Step 3: Cross multiply
    578,787.67x = 868,241.63 × 158,063.50
  4. Step 4: Simplify right side
    578,787.67x = 137,237,310,883.51
  5. Step 5: Solve for x
    x = 137,237,310,883.51/578,787.67
  6. Step 6: Final answer
    x = 237,111.67

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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.