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Finding the Fourth Proportional to 556,234.16, 834,431.02 and 172,012.88

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Solution

The fourth proportional to 556,234.16, 834,431.02 and 172,012.88 is: 258,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,234.16 : 834,431.02 = 172,012.88 : x
  2. Step 2: Convert to fraction form
    556,234.16/834,431.02 = 172,012.88/x
  3. Step 3: Cross multiply
    556,234.16x = 834,431.02 × 172,012.88
  4. Step 4: Simplify right side
    556,234.16x = 143,532,884,567.58
  5. Step 5: Solve for x
    x = 143,532,884,567.58/556,234.16
  6. Step 6: Final answer
    x = 258,044.00

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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.