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Finding the Fourth Proportional to 103,799.76, 155,750.36 and 64,346.32

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Solution

The fourth proportional to 103,799.76, 155,750.36 and 64,346.32 is: 96,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,799.76 : 155,750.36 = 64,346.32 : x
  2. Step 2: Convert to fraction form
    103,799.76/155,750.36 = 64,346.32/x
  3. Step 3: Cross multiply
    103,799.76x = 155,750.36 × 64,346.32
  4. Step 4: Simplify right side
    103,799.76x = 10,021,962,504.68
  5. Step 5: Solve for x
    x = 10,021,962,504.68/103,799.76
  6. Step 6: Final answer
    x = 96,550.92

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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.