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Finding the Fourth Proportional to 354,018.88, 530,913.48 and 117,298

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Solution

The fourth proportional to 354,018.88, 530,913.48 and 117,298 is: 175,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,018.88 : 530,913.48 = 117,298 : x
  2. Step 2: Convert to fraction form
    354,018.88/530,913.48 = 117,298/x
  3. Step 3: Cross multiply
    354,018.88x = 530,913.48 × 117,298
  4. Step 4: Simplify right side
    354,018.88x = 62,275,089,377.04
  5. Step 5: Solve for x
    x = 62,275,089,377.04/354,018.88
  6. Step 6: Final answer
    x = 175,908.95

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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.