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Finding the Fourth Proportional to 118,796.94, 178,222 and 39,909.01

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Solution

The fourth proportional to 118,796.94, 178,222 and 39,909.01 is: 59,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,796.94 : 178,222 = 39,909.01 : x
  2. Step 2: Convert to fraction form
    118,796.94/178,222 = 39,909.01/x
  3. Step 3: Cross multiply
    118,796.94x = 178,222 × 39,909.01
  4. Step 4: Simplify right side
    118,796.94x = 7,112,663,580.22
  5. Step 5: Solve for x
    x = 7,112,663,580.22/118,796.94
  6. Step 6: Final answer
    x = 59,872.45

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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.