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Finding the Fourth Proportional to 355,383.70, 532,881.15 and 144,783.70

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Solution

The fourth proportional to 355,383.70, 532,881.15 and 144,783.70 is: 217,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,383.70 : 532,881.15 = 144,783.70 : x
  2. Step 2: Convert to fraction form
    355,383.70/532,881.15 = 144,783.70/x
  3. Step 3: Cross multiply
    355,383.70x = 532,881.15 × 144,783.70
  4. Step 4: Simplify right side
    355,383.70x = 77,152,504,557.26
  5. Step 5: Solve for x
    x = 77,152,504,557.26/355,383.70
  6. Step 6: Final answer
    x = 217,096.35

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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.