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Finding the Fourth Proportional to 79,000.16, 109,020.59 and 43,190.16

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Solution

The fourth proportional to 79,000.16, 109,020.59 and 43,190.16 is: 59,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,000.16 : 109,020.59 = 43,190.16 : x
  2. Step 2: Convert to fraction form
    79,000.16/109,020.59 = 43,190.16/x
  3. Step 3: Cross multiply
    79,000.16x = 109,020.59 × 43,190.16
  4. Step 4: Simplify right side
    79,000.16x = 4,708,616,262.58
  5. Step 5: Solve for x
    x = 4,708,616,262.58/79,000.16
  6. Step 6: Final answer
    x = 59,602.62

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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.