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Finding the Fourth Proportional to 118,303.50, 177,367.77 and 71,545.98

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Solution

The fourth proportional to 118,303.50, 177,367.77 and 71,545.98 is: 107,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,303.50 : 177,367.77 = 71,545.98 : x
  2. Step 2: Convert to fraction form
    118,303.50/177,367.77 = 71,545.98/x
  3. Step 3: Cross multiply
    118,303.50x = 177,367.77 × 71,545.98
  4. Step 4: Simplify right side
    118,303.50x = 12,689,950,925.06
  5. Step 5: Solve for x
    x = 12,689,950,925.06/118,303.50
  6. Step 6: Final answer
    x = 107,266.07

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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.