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Finding the Fourth Proportional to 112,797.93, 155,661.10 and 67,477.81

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Solution

The fourth proportional to 112,797.93, 155,661.10 and 67,477.81 is: 93,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,797.93 : 155,661.10 = 67,477.81 : x
  2. Step 2: Convert to fraction form
    112,797.93/155,661.10 = 67,477.81/x
  3. Step 3: Cross multiply
    112,797.93x = 155,661.10 × 67,477.81
  4. Step 4: Simplify right side
    112,797.93x = 10,503,670,130.19
  5. Step 5: Solve for x
    x = 10,503,670,130.19/112,797.93
  6. Step 6: Final answer
    x = 93,119.35

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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.