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Finding the Fourth Proportional to 303,487.32, 455,211.54 and 93,107.64

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Solution

The fourth proportional to 303,487.32, 455,211.54 and 93,107.64 is: 139,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,487.32 : 455,211.54 = 93,107.64 : x
  2. Step 2: Convert to fraction form
    303,487.32/455,211.54 = 93,107.64/x
  3. Step 3: Cross multiply
    303,487.32x = 455,211.54 × 93,107.64
  4. Step 4: Simplify right side
    303,487.32x = 42,383,672,190.17
  5. Step 5: Solve for x
    x = 42,383,672,190.17/303,487.32
  6. Step 6: Final answer
    x = 139,655.50

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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.