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Finding the Fourth Proportional to 493,615.10, 740,422.68 and 119,638.10

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Solution

The fourth proportional to 493,615.10, 740,422.68 and 119,638.10 is: 179,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,615.10 : 740,422.68 = 119,638.10 : x
  2. Step 2: Convert to fraction form
    493,615.10/740,422.68 = 119,638.10/x
  3. Step 3: Cross multiply
    493,615.10x = 740,422.68 × 119,638.10
  4. Step 4: Simplify right side
    493,615.10x = 88,582,762,632.11
  5. Step 5: Solve for x
    x = 88,582,762,632.11/493,615.10
  6. Step 6: Final answer
    x = 179,457.16

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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.