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Finding the Fourth Proportional to 71,664.42, 98,880.84 and 43,369.50

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Solution

The fourth proportional to 71,664.42, 98,880.84 and 43,369.50 is: 59,840.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,664.42 : 98,880.84 = 43,369.50 : x
  2. Step 2: Convert to fraction form
    71,664.42/98,880.84 = 43,369.50/x
  3. Step 3: Cross multiply
    71,664.42x = 98,880.84 × 43,369.50
  4. Step 4: Simplify right side
    71,664.42x = 4,288,412,590.38
  5. Step 5: Solve for x
    x = 4,288,412,590.38/71,664.42
  6. Step 6: Final answer
    x = 59,840.19

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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.