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Finding the Fourth Proportional to 144,602.64, 199,545.84 and 80,946.72

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Solution

The fourth proportional to 144,602.64, 199,545.84 and 80,946.72 is: 111,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,602.64 : 199,545.84 = 80,946.72 : x
  2. Step 2: Convert to fraction form
    144,602.64/199,545.84 = 80,946.72/x
  3. Step 3: Cross multiply
    144,602.64x = 199,545.84 × 80,946.72
  4. Step 4: Simplify right side
    144,602.64x = 16,152,581,237.64
  5. Step 5: Solve for x
    x = 16,152,581,237.64/144,602.64
  6. Step 6: Final answer
    x = 111,703.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.