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Finding the Fourth Proportional to 72,370.16, 99,870.85 and 44,075.85

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Solution

The fourth proportional to 72,370.16, 99,870.85 and 44,075.85 is: 60,824.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,370.16 : 99,870.85 = 44,075.85 : x
  2. Step 2: Convert to fraction form
    72,370.16/99,870.85 = 44,075.85/x
  3. Step 3: Cross multiply
    72,370.16x = 99,870.85 × 44,075.85
  4. Step 4: Simplify right side
    72,370.16x = 4,401,892,603.97
  5. Step 5: Solve for x
    x = 4,401,892,603.97/72,370.16
  6. Step 6: Final answer
    x = 60,824.69

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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.