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Finding the Fourth Proportional to 464,083.10, 696,125.20 and 127,126.65

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Solution

The fourth proportional to 464,083.10, 696,125.20 and 127,126.65 is: 190,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,083.10 : 696,125.20 = 127,126.65 : x
  2. Step 2: Convert to fraction form
    464,083.10/696,125.20 = 127,126.65/x
  3. Step 3: Cross multiply
    464,083.10x = 696,125.20 × 127,126.65
  4. Step 4: Simplify right side
    464,083.10x = 88,496,063,271.89
  5. Step 5: Solve for x
    x = 88,496,063,271.89/464,083.10
  6. Step 6: Final answer
    x = 190,690.12

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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.