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Finding the Fourth Proportional to 77,455.72, 106,921.46 and 52,339.24

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Solution

The fourth proportional to 77,455.72, 106,921.46 and 52,339.24 is: 72,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,455.72 : 106,921.46 = 52,339.24 : x
  2. Step 2: Convert to fraction form
    77,455.72/106,921.46 = 52,339.24/x
  3. Step 3: Cross multiply
    77,455.72x = 106,921.46 × 52,339.24
  4. Step 4: Simplify right side
    77,455.72x = 5,596,187,956.09
  5. Step 5: Solve for x
    x = 5,596,187,956.09/77,455.72
  6. Step 6: Final answer
    x = 72,250.16

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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.