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Finding the Fourth Proportional to 111,574.44, 153,795.78 and 109,362.60

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Solution

The fourth proportional to 111,574.44, 153,795.78 and 109,362.60 is: 150,746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.44 : 153,795.78 = 109,362.60 : x
  2. Step 2: Convert to fraction form
    111,574.44/153,795.78 = 109,362.60/x
  3. Step 3: Cross multiply
    111,574.44x = 153,795.78 × 109,362.60
  4. Step 4: Simplify right side
    111,574.44x = 16,819,506,369.83
  5. Step 5: Solve for x
    x = 16,819,506,369.83/111,574.44
  6. Step 6: Final answer
    x = 150,746.95

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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.