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Finding the Fourth Proportional to 55,110.60, 77,329.80 and 55,110.60

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Solution

The fourth proportional to 55,110.60, 77,329.80 and 55,110.60 is: 77,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,110.60 : 77,329.80 = 55,110.60 : x
  2. Step 2: Convert to fraction form
    55,110.60/77,329.80 = 55,110.60/x
  3. Step 3: Cross multiply
    55,110.60x = 77,329.80 × 55,110.60
  4. Step 4: Simplify right side
    55,110.60x = 4,261,691,675.88
  5. Step 5: Solve for x
    x = 4,261,691,675.88/55,110.60
  6. Step 6: Final answer
    x = 77,329.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.