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Finding the Fourth Proportional to 117,289.72, 175,894.74 and 38,384.32

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Solution

The fourth proportional to 117,289.72, 175,894.74 and 38,384.32 is: 57,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,289.72 : 175,894.74 = 38,384.32 : x
  2. Step 2: Convert to fraction form
    117,289.72/175,894.74 = 38,384.32/x
  3. Step 3: Cross multiply
    117,289.72x = 175,894.74 × 38,384.32
  4. Step 4: Simplify right side
    117,289.72x = 6,751,599,986.48
  5. Step 5: Solve for x
    x = 6,751,599,986.48/117,289.72
  6. Step 6: Final answer
    x = 57,563.44

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1.5x scale

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.