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Finding the Fourth Proportional to 120,111, 180,166.50 and 32,559

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Solution

The fourth proportional to 120,111, 180,166.50 and 32,559 is: 48,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,111 : 180,166.50 = 32,559 : x
  2. Step 2: Convert to fraction form
    120,111/180,166.50 = 32,559/x
  3. Step 3: Cross multiply
    120,111x = 180,166.50 × 32,559
  4. Step 4: Simplify right side
    120,111x = 5,866,041,073.50
  5. Step 5: Solve for x
    x = 5,866,041,073.50/120,111
  6. Step 6: Final answer
    x = 48,838.50

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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.