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Finding the Fourth Proportional to 358,783.35, 538,161.54 and 88,912.28

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Solution

The fourth proportional to 358,783.35, 538,161.54 and 88,912.28 is: 133,365.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,783.35 : 538,161.54 = 88,912.28 : x
  2. Step 2: Convert to fraction form
    358,783.35/538,161.54 = 88,912.28/x
  3. Step 3: Cross multiply
    358,783.35x = 538,161.54 × 88,912.28
  4. Step 4: Simplify right side
    358,783.35x = 47,849,166,838.90
  5. Step 5: Solve for x
    x = 47,849,166,838.90/358,783.35
  6. Step 6: Final answer
    x = 133,365.07

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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.