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Finding the Fourth Proportional to 358,406.40, 537,091.20 and 158,563.20

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Solution

The fourth proportional to 358,406.40, 537,091.20 and 158,563.20 is: 237,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,406.40 : 537,091.20 = 158,563.20 : x
  2. Step 2: Convert to fraction form
    358,406.40/537,091.20 = 158,563.20/x
  3. Step 3: Cross multiply
    358,406.40x = 537,091.20 × 158,563.20
  4. Step 4: Simplify right side
    358,406.40x = 85,162,899,363.84
  5. Step 5: Solve for x
    x = 85,162,899,363.84/358,406.40
  6. Step 6: Final answer
    x = 237,615.45

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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.