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Finding the Fourth Proportional to 71,369.52, 98,450.26 and 56,206.32

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Solution

The fourth proportional to 71,369.52, 98,450.26 and 56,206.32 is: 77,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.52 : 98,450.26 = 56,206.32 : x
  2. Step 2: Convert to fraction form
    71,369.52/98,450.26 = 56,206.32/x
  3. Step 3: Cross multiply
    71,369.52x = 98,450.26 × 56,206.32
  4. Step 4: Simplify right side
    71,369.52x = 5,533,526,817.64
  5. Step 5: Solve for x
    x = 5,533,526,817.64/71,369.52
  6. Step 6: Final answer
    x = 77,533.47

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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.