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Finding the Fourth Proportional to 111,710.87, 154,160.69 and 60,723.60

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Solution

The fourth proportional to 111,710.87, 154,160.69 and 60,723.60 is: 83,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,710.87 : 154,160.69 = 60,723.60 : x
  2. Step 2: Convert to fraction form
    111,710.87/154,160.69 = 60,723.60/x
  3. Step 3: Cross multiply
    111,710.87x = 154,160.69 × 60,723.60
  4. Step 4: Simplify right side
    111,710.87x = 9,361,192,075.28
  5. Step 5: Solve for x
    x = 9,361,192,075.28/111,710.87
  6. Step 6: Final answer
    x = 83,798.40

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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.