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Finding the Fourth Proportional to 101,364.83, 139,886.37 and 56,045.73

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Solution

The fourth proportional to 101,364.83, 139,886.37 and 56,045.73 is: 77,344.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,364.83 : 139,886.37 = 56,045.73 : x
  2. Step 2: Convert to fraction form
    101,364.83/139,886.37 = 56,045.73/x
  3. Step 3: Cross multiply
    101,364.83x = 139,886.37 × 56,045.73
  4. Step 4: Simplify right side
    101,364.83x = 7,840,033,723.70
  5. Step 5: Solve for x
    x = 7,840,033,723.70/101,364.83
  6. Step 6: Final answer
    x = 77,344.72

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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.