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Finding the Fourth Proportional to 79,143.60, 109,216.71 and 43,332.96

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Solution

The fourth proportional to 79,143.60, 109,216.71 and 43,332.96 is: 59,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,143.60 : 109,216.71 = 43,332.96 : x
  2. Step 2: Convert to fraction form
    79,143.60/109,216.71 = 43,332.96/x
  3. Step 3: Cross multiply
    79,143.60x = 109,216.71 × 43,332.96
  4. Step 4: Simplify right side
    79,143.60x = 4,732,683,325.76
  5. Step 5: Solve for x
    x = 4,732,683,325.76/79,143.60
  6. Step 6: Final answer
    x = 59,798.69

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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.