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Finding the Fourth Proportional to 118,615.70, 177,923.55 and 48,545.30

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Solution

The fourth proportional to 118,615.70, 177,923.55 and 48,545.30 is: 72,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,615.70 : 177,923.55 = 48,545.30 : x
  2. Step 2: Convert to fraction form
    118,615.70/177,923.55 = 48,545.30/x
  3. Step 3: Cross multiply
    118,615.70x = 177,923.55 × 48,545.30
  4. Step 4: Simplify right side
    118,615.70x = 8,637,352,111.82
  5. Step 5: Solve for x
    x = 8,637,352,111.82/118,615.70
  6. Step 6: Final answer
    x = 72,817.95

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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.