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Finding the Fourth Proportional to 117,559, 176,283.90 and 42,669.64

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Solution

The fourth proportional to 117,559, 176,283.90 and 42,669.64 is: 63,984.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,559 : 176,283.90 = 42,669.64 : x
  2. Step 2: Convert to fraction form
    117,559/176,283.90 = 42,669.64/x
  3. Step 3: Cross multiply
    117,559x = 176,283.90 × 42,669.64
  4. Step 4: Simplify right side
    117,559x = 7,521,970,550.80
  5. Step 5: Solve for x
    x = 7,521,970,550.80/117,559
  6. Step 6: Final answer
    x = 63,984.64

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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.