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Finding the Fourth Proportional to 119,545.54, 179,261.10 and 69,639.88

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Solution

The fourth proportional to 119,545.54, 179,261.10 and 69,639.88 is: 104,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,545.54 : 179,261.10 = 69,639.88 : x
  2. Step 2: Convert to fraction form
    119,545.54/179,261.10 = 69,639.88/x
  3. Step 3: Cross multiply
    119,545.54x = 179,261.10 × 69,639.88
  4. Step 4: Simplify right side
    119,545.54x = 12,483,721,492.67
  5. Step 5: Solve for x
    x = 12,483,721,492.67/119,545.54
  6. Step 6: Final answer
    x = 104,426.49

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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.