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Finding the Fourth Proportional to 92,756.52, 128,004.81 and 50,315.88

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Solution

The fourth proportional to 92,756.52, 128,004.81 and 50,315.88 is: 69,436.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,756.52 : 128,004.81 = 50,315.88 : x
  2. Step 2: Convert to fraction form
    92,756.52/128,004.81 = 50,315.88/x
  3. Step 3: Cross multiply
    92,756.52x = 128,004.81 × 50,315.88
  4. Step 4: Simplify right side
    92,756.52x = 6,440,674,659.38
  5. Step 5: Solve for x
    x = 6,440,674,659.38/92,756.52
  6. Step 6: Final answer
    x = 69,436.36

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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.