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Finding the Fourth Proportional to 72,403.02, 99,916.02 and 44,108.70

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Solution

The fourth proportional to 72,403.02, 99,916.02 and 44,108.70 is: 60,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,403.02 : 99,916.02 = 44,108.70 : x
  2. Step 2: Convert to fraction form
    72,403.02/99,916.02 = 44,108.70/x
  3. Step 3: Cross multiply
    72,403.02x = 99,916.02 × 44,108.70
  4. Step 4: Simplify right side
    72,403.02x = 4,407,165,751.37
  5. Step 5: Solve for x
    x = 4,407,165,751.37/72,403.02
  6. Step 6: Final answer
    x = 60,869.92

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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.