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Finding the Fourth Proportional to 369,618.68, 554,661.21 and 144,973.11

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Solution

The fourth proportional to 369,618.68, 554,661.21 and 144,973.11 is: 217,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,618.68 : 554,661.21 = 144,973.11 : x
  2. Step 2: Convert to fraction form
    369,618.68/554,661.21 = 144,973.11/x
  3. Step 3: Cross multiply
    369,618.68x = 554,661.21 × 144,973.11
  4. Step 4: Simplify right side
    369,618.68x = 80,410,960,610.06
  5. Step 5: Solve for x
    x = 80,410,960,610.06/369,618.68
  6. Step 6: Final answer
    x = 217,551.13

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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.