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Finding the Fourth Proportional to 118,367.10, 163,360.65 and 67,392.09

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Solution

The fourth proportional to 118,367.10, 163,360.65 and 67,392.09 is: 93,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367.10 : 163,360.65 = 67,392.09 : x
  2. Step 2: Convert to fraction form
    118,367.10/163,360.65 = 67,392.09/x
  3. Step 3: Cross multiply
    118,367.10x = 163,360.65 × 67,392.09
  4. Step 4: Simplify right side
    118,367.10x = 11,009,215,627.26
  5. Step 5: Solve for x
    x = 11,009,215,627.26/118,367.10
  6. Step 6: Final answer
    x = 93,009.08

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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.