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Finding the Fourth Proportional to 142,866.04, 214,321.74 and 49,379.08

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Solution

The fourth proportional to 142,866.04, 214,321.74 and 49,379.08 is: 74,076.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,866.04 : 214,321.74 = 49,379.08 : x
  2. Step 2: Convert to fraction form
    142,866.04/214,321.74 = 49,379.08/x
  3. Step 3: Cross multiply
    142,866.04x = 214,321.74 × 49,379.08
  4. Step 4: Simplify right side
    142,866.04x = 10,583,010,345.20
  5. Step 5: Solve for x
    x = 10,583,010,345.20/142,866.04
  6. Step 6: Final answer
    x = 74,076.46

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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.