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Finding the Fourth Proportional to 118,375.70, 163,354.32 and 70,604.33

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Solution

The fourth proportional to 118,375.70, 163,354.32 and 70,604.33 is: 97,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,375.70 : 163,354.32 = 70,604.33 : x
  2. Step 2: Convert to fraction form
    118,375.70/163,354.32 = 70,604.33/x
  3. Step 3: Cross multiply
    118,375.70x = 163,354.32 × 70,604.33
  4. Step 4: Simplify right side
    118,375.70x = 11,533,521,499.43
  5. Step 5: Solve for x
    x = 11,533,521,499.43/118,375.70
  6. Step 6: Final answer
    x = 97,431.50

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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.