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Finding the Fourth Proportional to 144,543.76, 216,871.53 and 55,772.62

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Solution

The fourth proportional to 144,543.76, 216,871.53 and 55,772.62 is: 83,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,543.76 : 216,871.53 = 55,772.62 : x
  2. Step 2: Convert to fraction form
    144,543.76/216,871.53 = 55,772.62/x
  3. Step 3: Cross multiply
    144,543.76x = 216,871.53 × 55,772.62
  4. Step 4: Simplify right side
    144,543.76x = 12,095,492,680.18
  5. Step 5: Solve for x
    x = 12,095,492,680.18/144,543.76
  6. Step 6: Final answer
    x = 83,680.49

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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.