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Finding the Fourth Proportional to 121,545.60, 182,188.80 and 46,636.80

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Solution

The fourth proportional to 121,545.60, 182,188.80 and 46,636.80 is: 69,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,545.60 : 182,188.80 = 46,636.80 : x
  2. Step 2: Convert to fraction form
    121,545.60/182,188.80 = 46,636.80/x
  3. Step 3: Cross multiply
    121,545.60x = 182,188.80 × 46,636.80
  4. Step 4: Simplify right side
    121,545.60x = 8,496,702,627.84
  5. Step 5: Solve for x
    x = 8,496,702,627.84/121,545.60
  6. Step 6: Final answer
    x = 69,905.47

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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.