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Finding the Fourth Proportional to 165,692.40, 248,538.60 and 140,031.60

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Solution

The fourth proportional to 165,692.40, 248,538.60 and 140,031.60 is: 210,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,692.40 : 248,538.60 = 140,031.60 : x
  2. Step 2: Convert to fraction form
    165,692.40/248,538.60 = 140,031.60/x
  3. Step 3: Cross multiply
    165,692.40x = 248,538.60 × 140,031.60
  4. Step 4: Simplify right side
    165,692.40x = 34,803,257,819.76
  5. Step 5: Solve for x
    x = 34,803,257,819.76/165,692.40
  6. Step 6: Final answer
    x = 210,047.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.