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Finding the Fourth Proportional to 85,376.35, 119,701.85 and 85,376.35

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Solution

The fourth proportional to 85,376.35, 119,701.85 and 85,376.35 is: 119,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,376.35 : 119,701.85 = 85,376.35 : x
  2. Step 2: Convert to fraction form
    85,376.35/119,701.85 = 85,376.35/x
  3. Step 3: Cross multiply
    85,376.35x = 119,701.85 × 85,376.35
  4. Step 4: Simplify right side
    85,376.35x = 10,219,707,041.25
  5. Step 5: Solve for x
    x = 10,219,707,041.25/85,376.35
  6. Step 6: Final answer
    x = 119,701.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.