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Finding the Fourth Proportional to 92,412.38, 127,528.99 and 49,970.81

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Solution

The fourth proportional to 92,412.38, 127,528.99 and 49,970.81 is: 68,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,412.38 : 127,528.99 = 49,970.81 : x
  2. Step 2: Convert to fraction form
    92,412.38/127,528.99 = 49,970.81/x
  3. Step 3: Cross multiply
    92,412.38x = 127,528.99 × 49,970.81
  4. Step 4: Simplify right side
    92,412.38x = 6,372,727,122.68
  5. Step 5: Solve for x
    x = 6,372,727,122.68/92,412.38
  6. Step 6: Final answer
    x = 68,959.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.