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Finding the Fourth Proportional to 134,782.80, 201,785.40 and 119,230.80

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Solution

The fourth proportional to 134,782.80, 201,785.40 and 119,230.80 is: 178,502.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.80 : 201,785.40 = 119,230.80 : x
  2. Step 2: Convert to fraction form
    134,782.80/201,785.40 = 119,230.80/x
  3. Step 3: Cross multiply
    134,782.80x = 201,785.40 × 119,230.80
  4. Step 4: Simplify right side
    134,782.80x = 24,059,034,670.32
  5. Step 5: Solve for x
    x = 24,059,034,670.32/134,782.80
  6. Step 6: Final answer
    x = 178,502.26

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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.