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Finding the Fourth Proportional to 149,130.04, 205,799.38 and 82,062.04

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Solution

The fourth proportional to 149,130.04, 205,799.38 and 82,062.04 is: 113,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,130.04 : 205,799.38 = 82,062.04 : x
  2. Step 2: Convert to fraction form
    149,130.04/205,799.38 = 82,062.04/x
  3. Step 3: Cross multiply
    149,130.04x = 205,799.38 × 82,062.04
  4. Step 4: Simplify right side
    149,130.04x = 16,888,316,953.54
  5. Step 5: Solve for x
    x = 16,888,316,953.54/149,130.04
  6. Step 6: Final answer
    x = 113,245.57

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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.