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Finding the Fourth Proportional to 77,162.88, 106,440.48 and 45,325.92

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Solution

The fourth proportional to 77,162.88, 106,440.48 and 45,325.92 is: 62,523.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,162.88 : 106,440.48 = 45,325.92 : x
  2. Step 2: Convert to fraction form
    77,162.88/106,440.48 = 45,325.92/x
  3. Step 3: Cross multiply
    77,162.88x = 106,440.48 × 45,325.92
  4. Step 4: Simplify right side
    77,162.88x = 4,824,512,681.24
  5. Step 5: Solve for x
    x = 4,824,512,681.24/77,162.88
  6. Step 6: Final answer
    x = 62,523.75

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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.