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Finding the Fourth Proportional to 70,125.93, 105,188.94 and 23,378.85

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Solution

The fourth proportional to 70,125.93, 105,188.94 and 23,378.85 is: 35,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,125.93 : 105,188.94 = 23,378.85 : x
  2. Step 2: Convert to fraction form
    70,125.93/105,188.94 = 23,378.85/x
  3. Step 3: Cross multiply
    70,125.93x = 105,188.94 × 23,378.85
  4. Step 4: Simplify right side
    70,125.93x = 2,459,196,449.92
  5. Step 5: Solve for x
    x = 2,459,196,449.92/70,125.93
  6. Step 6: Final answer
    x = 35,068.29

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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.