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Finding the Fourth Proportional to 355,849.94, 533,802.28 and 103,133.85

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Solution

The fourth proportional to 355,849.94, 533,802.28 and 103,133.85 is: 154,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,849.94 : 533,802.28 = 103,133.85 : x
  2. Step 2: Convert to fraction form
    355,849.94/533,802.28 = 103,133.85/x
  3. Step 3: Cross multiply
    355,849.94x = 533,802.28 × 103,133.85
  4. Step 4: Simplify right side
    355,849.94x = 55,053,084,275.18
  5. Step 5: Solve for x
    x = 55,053,084,275.18/355,849.94
  6. Step 6: Final answer
    x = 154,708.71

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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.