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Finding the Fourth Proportional to 79,293.96, 109,430.66 and 52,389.30

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Solution

The fourth proportional to 79,293.96, 109,430.66 and 52,389.30 is: 72,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,293.96 : 109,430.66 = 52,389.30 : x
  2. Step 2: Convert to fraction form
    79,293.96/109,430.66 = 52,389.30/x
  3. Step 3: Cross multiply
    79,293.96x = 109,430.66 × 52,389.30
  4. Step 4: Simplify right side
    79,293.96x = 5,732,995,675.94
  5. Step 5: Solve for x
    x = 5,732,995,675.94/79,293.96
  6. Step 6: Final answer
    x = 72,300.53

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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.