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Finding the Fourth Proportional to 118,469.77, 163,488.60 and 70,722.09

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Solution

The fourth proportional to 118,469.77, 163,488.60 and 70,722.09 is: 97,596.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,469.77 : 163,488.60 = 70,722.09 : x
  2. Step 2: Convert to fraction form
    118,469.77/163,488.60 = 70,722.09/x
  3. Step 3: Cross multiply
    118,469.77x = 163,488.60 × 70,722.09
  4. Step 4: Simplify right side
    118,469.77x = 11,562,255,483.17
  5. Step 5: Solve for x
    x = 11,562,255,483.17/118,469.77
  6. Step 6: Final answer
    x = 97,596.67

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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.