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Finding the Fourth Proportional to 84,720.84, 127,099.74 and 32,130.84

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Solution

The fourth proportional to 84,720.84, 127,099.74 and 32,130.84 is: 48,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.84 : 127,099.74 = 32,130.84 : x
  2. Step 2: Convert to fraction form
    84,720.84/127,099.74 = 32,130.84/x
  3. Step 3: Cross multiply
    84,720.84x = 127,099.74 × 32,130.84
  4. Step 4: Simplify right side
    84,720.84x = 4,083,821,409.98
  5. Step 5: Solve for x
    x = 4,083,821,409.98/84,720.84
  6. Step 6: Final answer
    x = 48,203.27

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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.