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Finding the Fourth Proportional to 354,030.20, 530,848.50 and 117,243.74

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Solution

The fourth proportional to 354,030.20, 530,848.50 and 117,243.74 is: 175,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,030.20 : 530,848.50 = 117,243.74 : x
  2. Step 2: Convert to fraction form
    354,030.20/530,848.50 = 117,243.74/x
  3. Step 3: Cross multiply
    354,030.20x = 530,848.50 × 117,243.74
  4. Step 4: Simplify right side
    354,030.20x = 62,238,663,513.39
  5. Step 5: Solve for x
    x = 62,238,663,513.39/354,030.20
  6. Step 6: Final answer
    x = 175,800.44

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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.