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Finding the Fourth Proportional to 79,359.76, 109,518.12 and 43,547.68

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Solution

The fourth proportional to 79,359.76, 109,518.12 and 43,547.68 is: 60,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,359.76 : 109,518.12 = 43,547.68 : x
  2. Step 2: Convert to fraction form
    79,359.76/109,518.12 = 43,547.68/x
  3. Step 3: Cross multiply
    79,359.76x = 109,518.12 × 43,547.68
  4. Step 4: Simplify right side
    79,359.76x = 4,769,260,043.96
  5. Step 5: Solve for x
    x = 4,769,260,043.96/79,359.76
  6. Step 6: Final answer
    x = 60,096.70

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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.