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Finding the Fourth Proportional to 162,328.40, 243,377.40 and 73,624.40

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Solution

The fourth proportional to 162,328.40, 243,377.40 and 73,624.40 is: 110,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,328.40 : 243,377.40 = 73,624.40 : x
  2. Step 2: Convert to fraction form
    162,328.40/243,377.40 = 73,624.40/x
  3. Step 3: Cross multiply
    162,328.40x = 243,377.40 × 73,624.40
  4. Step 4: Simplify right side
    162,328.40x = 17,918,515,048.56
  5. Step 5: Solve for x
    x = 17,918,515,048.56/162,328.40
  6. Step 6: Final answer
    x = 110,384.35

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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.