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Finding the Fourth Proportional to 86,425.88, 119,267.72 and 46,681.88

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Solution

The fourth proportional to 86,425.88, 119,267.72 and 46,681.88 is: 64,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,425.88 : 119,267.72 = 46,681.88 : x
  2. Step 2: Convert to fraction form
    86,425.88/119,267.72 = 46,681.88/x
  3. Step 3: Cross multiply
    86,425.88x = 119,267.72 × 46,681.88
  4. Step 4: Simplify right side
    86,425.88x = 5,567,640,563.17
  5. Step 5: Solve for x
    x = 5,567,640,563.17/86,425.88
  6. Step 6: Final answer
    x = 64,420.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.