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Finding the Fourth Proportional to 118,520.98, 163,525.98 and 70,756.90

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Solution

The fourth proportional to 118,520.98, 163,525.98 and 70,756.90 is: 97,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.98 : 163,525.98 = 70,756.90 : x
  2. Step 2: Convert to fraction form
    118,520.98/163,525.98 = 70,756.90/x
  3. Step 3: Cross multiply
    118,520.98x = 163,525.98 × 70,756.90
  4. Step 4: Simplify right side
    118,520.98x = 11,570,591,414.26
  5. Step 5: Solve for x
    x = 11,570,591,414.26/118,520.98
  6. Step 6: Final answer
    x = 97,624.84

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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.