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Finding the Fourth Proportional to 118,051.75, 162,911.34 and 64,336.76

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Solution

The fourth proportional to 118,051.75, 162,911.34 and 64,336.76 is: 88,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,051.75 : 162,911.34 = 64,336.76 : x
  2. Step 2: Convert to fraction form
    118,051.75/162,911.34 = 64,336.76/x
  3. Step 3: Cross multiply
    118,051.75x = 162,911.34 × 64,336.76
  4. Step 4: Simplify right side
    118,051.75x = 10,481,187,030.56
  5. Step 5: Solve for x
    x = 10,481,187,030.56/118,051.75
  6. Step 6: Final answer
    x = 88,784.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.