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Finding the Fourth Proportional to 86,707.36, 119,655.70 and 46,963.36

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Solution

The fourth proportional to 86,707.36, 119,655.70 and 46,963.36 is: 64,809.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,707.36 : 119,655.70 = 46,963.36 : x
  2. Step 2: Convert to fraction form
    86,707.36/119,655.70 = 46,963.36/x
  3. Step 3: Cross multiply
    86,707.36x = 119,655.70 × 46,963.36
  4. Step 4: Simplify right side
    86,707.36x = 5,619,433,715.15
  5. Step 5: Solve for x
    x = 5,619,433,715.15/86,707.36
  6. Step 6: Final answer
    x = 64,809.19

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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.