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Finding the Fourth Proportional to 356,079.41, 534,119.10 and 119,421.41

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Solution

The fourth proportional to 356,079.41, 534,119.10 and 119,421.41 is: 179,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,079.41 : 534,119.10 = 119,421.41 : x
  2. Step 2: Convert to fraction form
    356,079.41/534,119.10 = 119,421.41/x
  3. Step 3: Cross multiply
    356,079.41x = 534,119.10 × 119,421.41
  4. Step 4: Simplify right side
    356,079.41x = 63,785,252,911.51
  5. Step 5: Solve for x
    x = 63,785,252,911.51/356,079.41
  6. Step 6: Final answer
    x = 179,132.10

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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.