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Finding the Fourth Proportional to 103,801.76, 155,753.36 and 64,348.32

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Solution

The fourth proportional to 103,801.76, 155,753.36 and 64,348.32 is: 96,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,801.76 : 155,753.36 = 64,348.32 : x
  2. Step 2: Convert to fraction form
    103,801.76/155,753.36 = 64,348.32/x
  3. Step 3: Cross multiply
    103,801.76x = 155,753.36 × 64,348.32
  4. Step 4: Simplify right side
    103,801.76x = 10,022,467,050.36
  5. Step 5: Solve for x
    x = 10,022,467,050.36/103,801.76
  6. Step 6: Final answer
    x = 96,553.92

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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.