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Finding the Fourth Proportional to 144,487.30, 216,792.98 and 55,803.09

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Solution

The fourth proportional to 144,487.30, 216,792.98 and 55,803.09 is: 83,728.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,487.30 : 216,792.98 = 55,803.09 : x
  2. Step 2: Convert to fraction form
    144,487.30/216,792.98 = 55,803.09/x
  3. Step 3: Cross multiply
    144,487.30x = 216,792.98 × 55,803.09
  4. Step 4: Simplify right side
    144,487.30x = 12,097,717,082.32
  5. Step 5: Solve for x
    x = 12,097,717,082.32/144,487.30
  6. Step 6: Final answer
    x = 83,728.58

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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.