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Finding the Fourth Proportional to 79,528.50, 109,746.99 and 45,535.86

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Solution

The fourth proportional to 79,528.50, 109,746.99 and 45,535.86 is: 62,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,528.50 : 109,746.99 = 45,535.86 : x
  2. Step 2: Convert to fraction form
    79,528.50/109,746.99 = 45,535.86/x
  3. Step 3: Cross multiply
    79,528.50x = 109,746.99 × 45,535.86
  4. Step 4: Simplify right side
    79,528.50x = 4,997,423,572.06
  5. Step 5: Solve for x
    x = 4,997,423,572.06/79,528.50
  6. Step 6: Final answer
    x = 62,838.15

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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.