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Finding the Fourth Proportional to 118,784.84, 163,925.72 and 67,796.57

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Solution

The fourth proportional to 118,784.84, 163,925.72 and 67,796.57 is: 93,560.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,784.84 : 163,925.72 = 67,796.57 : x
  2. Step 2: Convert to fraction form
    118,784.84/163,925.72 = 67,796.57/x
  3. Step 3: Cross multiply
    118,784.84x = 163,925.72 × 67,796.57
  4. Step 4: Simplify right side
    118,784.84x = 11,113,600,900.64
  5. Step 5: Solve for x
    x = 11,113,600,900.64/118,784.84
  6. Step 6: Final answer
    x = 93,560.77

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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.