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Finding the Fourth Proportional to 154,963.99, 213,607.70 and 101,222.11

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Solution

The fourth proportional to 154,963.99, 213,607.70 and 101,222.11 is: 139,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,963.99 : 213,607.70 = 101,222.11 : x
  2. Step 2: Convert to fraction form
    154,963.99/213,607.70 = 101,222.11/x
  3. Step 3: Cross multiply
    154,963.99x = 213,607.70 × 101,222.11
  4. Step 4: Simplify right side
    154,963.99x = 21,621,821,600.14
  5. Step 5: Solve for x
    x = 21,621,821,600.14/154,963.99
  6. Step 6: Final answer
    x = 139,528.04

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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.