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Finding the Fourth Proportional to 86,641, 119,564.94 and 46,897

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Solution

The fourth proportional to 86,641, 119,564.94 and 46,897 is: 64,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,641 : 119,564.94 = 46,897 : x
  2. Step 2: Convert to fraction form
    86,641/119,564.94 = 46,897/x
  3. Step 3: Cross multiply
    86,641x = 119,564.94 × 46,897
  4. Step 4: Simplify right side
    86,641x = 5,607,236,991.18
  5. Step 5: Solve for x
    x = 5,607,236,991.18/86,641
  6. Step 6: Final answer
    x = 64,718.05

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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.