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Finding the Fourth Proportional to 111,225.87, 153,493.52 and 60,921.63

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Solution

The fourth proportional to 111,225.87, 153,493.52 and 60,921.63 is: 84,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,225.87 : 153,493.52 = 60,921.63 : x
  2. Step 2: Convert to fraction form
    111,225.87/153,493.52 = 60,921.63/x
  3. Step 3: Cross multiply
    111,225.87x = 153,493.52 × 60,921.63
  4. Step 4: Simplify right side
    111,225.87x = 9,351,075,128.23
  5. Step 5: Solve for x
    x = 9,351,075,128.23/111,225.87
  6. Step 6: Final answer
    x = 84,072.84

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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.