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Finding the Fourth Proportional to 120,050.60, 165,670.26 and 65,602.76

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Solution

The fourth proportional to 120,050.60, 165,670.26 and 65,602.76 is: 90,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,050.60 : 165,670.26 = 65,602.76 : x
  2. Step 2: Convert to fraction form
    120,050.60/165,670.26 = 65,602.76/x
  3. Step 3: Cross multiply
    120,050.60x = 165,670.26 × 65,602.76
  4. Step 4: Simplify right side
    120,050.60x = 10,868,425,977.90
  5. Step 5: Solve for x
    x = 10,868,425,977.90/120,050.60
  6. Step 6: Final answer
    x = 90,532.05

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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.