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Finding the Fourth Proportional to 511,443.16, 767,136.91 and 156,457.18

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Solution

The fourth proportional to 511,443.16, 767,136.91 and 156,457.18 is: 234,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,443.16 : 767,136.91 = 156,457.18 : x
  2. Step 2: Convert to fraction form
    511,443.16/767,136.91 = 156,457.18/x
  3. Step 3: Cross multiply
    511,443.16x = 767,136.91 × 156,457.18
  4. Step 4: Simplify right side
    511,443.16x = 120,024,080,212.49
  5. Step 5: Solve for x
    x = 120,024,080,212.49/511,443.16
  6. Step 6: Final answer
    x = 234,677.26

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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.