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Finding the Fourth Proportional to 374,200.76, 561,522.57 and 137,709.51

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Solution

The fourth proportional to 374,200.76, 561,522.57 and 137,709.51 is: 206,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,200.76 : 561,522.57 = 137,709.51 : x
  2. Step 2: Convert to fraction form
    374,200.76/561,522.57 = 137,709.51/x
  3. Step 3: Cross multiply
    374,200.76x = 561,522.57 × 137,709.51
  4. Step 4: Simplify right side
    374,200.76x = 77,326,997,968.64
  5. Step 5: Solve for x
    x = 77,326,997,968.64/374,200.76
  6. Step 6: Final answer
    x = 206,645.76

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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.