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Finding the Fourth Proportional to 107,313.70, 160,970.55 and 28,435.90

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Solution

The fourth proportional to 107,313.70, 160,970.55 and 28,435.90 is: 42,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,313.70 : 160,970.55 = 28,435.90 : x
  2. Step 2: Convert to fraction form
    107,313.70/160,970.55 = 28,435.90/x
  3. Step 3: Cross multiply
    107,313.70x = 160,970.55 × 28,435.90
  4. Step 4: Simplify right side
    107,313.70x = 4,577,342,462.75
  5. Step 5: Solve for x
    x = 4,577,342,462.75/107,313.70
  6. Step 6: Final answer
    x = 42,653.85

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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.