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Finding the Fourth Proportional to 74,217.50, 102,420.51 and 44,409.50

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Solution

The fourth proportional to 74,217.50, 102,420.51 and 44,409.50 is: 61,285.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.50 : 102,420.51 = 44,409.50 : x
  2. Step 2: Convert to fraction form
    74,217.50/102,420.51 = 44,409.50/x
  3. Step 3: Cross multiply
    74,217.50x = 102,420.51 × 44,409.50
  4. Step 4: Simplify right side
    74,217.50x = 4,548,443,638.85
  5. Step 5: Solve for x
    x = 4,548,443,638.85/74,217.50
  6. Step 6: Final answer
    x = 61,285.33

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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.