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Finding the Fourth Proportional to 118,122.54, 163,005.54 and 64,408.59

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Solution

The fourth proportional to 118,122.54, 163,005.54 and 64,408.59 is: 88,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,122.54 : 163,005.54 = 64,408.59 : x
  2. Step 2: Convert to fraction form
    118,122.54/163,005.54 = 64,408.59/x
  3. Step 3: Cross multiply
    118,122.54x = 163,005.54 × 64,408.59
  4. Step 4: Simplify right side
    118,122.54x = 10,498,956,993.59
  5. Step 5: Solve for x
    x = 10,498,956,993.59/118,122.54
  6. Step 6: Final answer
    x = 88,881.91

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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.