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Finding the Fourth Proportional to 109,639.94, 151,303.13 and 59,338.94

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Solution

The fourth proportional to 109,639.94, 151,303.13 and 59,338.94 is: 81,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,639.94 : 151,303.13 = 59,338.94 : x
  2. Step 2: Convert to fraction form
    109,639.94/151,303.13 = 59,338.94/x
  3. Step 3: Cross multiply
    109,639.94x = 151,303.13 × 59,338.94
  4. Step 4: Simplify right side
    109,639.94x = 8,978,167,352.88
  5. Step 5: Solve for x
    x = 8,978,167,352.88/109,639.94
  6. Step 6: Final answer
    x = 81,887.74

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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.