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Finding the Fourth Proportional to 111,542.80, 153,957.47 and 63,811.12

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Solution

The fourth proportional to 111,542.80, 153,957.47 and 63,811.12 is: 88,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,542.80 : 153,957.47 = 63,811.12 : x
  2. Step 2: Convert to fraction form
    111,542.80/153,957.47 = 63,811.12/x
  3. Step 3: Cross multiply
    111,542.80x = 153,957.47 × 63,811.12
  4. Step 4: Simplify right side
    111,542.80x = 9,824,198,593.07
  5. Step 5: Solve for x
    x = 9,824,198,593.07/111,542.80
  6. Step 6: Final answer
    x = 88,075.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.