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Finding the Fourth Proportional to 79,303.91, 109,439.16 and 45,322.94

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Solution

The fourth proportional to 79,303.91, 109,439.16 and 45,322.94 is: 62,545.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,303.91 : 109,439.16 = 45,322.94 : x
  2. Step 2: Convert to fraction form
    79,303.91/109,439.16 = 45,322.94/x
  3. Step 3: Cross multiply
    79,303.91x = 109,439.16 × 45,322.94
  4. Step 4: Simplify right side
    79,303.91x = 4,960,103,935.13
  5. Step 5: Solve for x
    x = 4,960,103,935.13/79,303.91
  6. Step 6: Final answer
    x = 62,545.52

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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.