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Finding the Fourth Proportional to 154,509.84, 213,245.18 and 111,628.11

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Solution

The fourth proportional to 154,509.84, 213,245.18 and 111,628.11 is: 154,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,509.84 : 213,245.18 = 111,628.11 : x
  2. Step 2: Convert to fraction form
    154,509.84/213,245.18 = 111,628.11/x
  3. Step 3: Cross multiply
    154,509.84x = 213,245.18 × 111,628.11
  4. Step 4: Simplify right side
    154,509.84x = 23,804,154,785.64
  5. Step 5: Solve for x
    x = 23,804,154,785.64/154,509.84
  6. Step 6: Final answer
    x = 154,062.39

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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.