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Finding the Fourth Proportional to 112,994.43, 169,491.47 and 46,387.64

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Solution

The fourth proportional to 112,994.43, 169,491.47 and 46,387.64 is: 69,581.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,994.43 : 169,491.47 = 46,387.64 : x
  2. Step 2: Convert to fraction form
    112,994.43/169,491.47 = 46,387.64/x
  3. Step 3: Cross multiply
    112,994.43x = 169,491.47 × 46,387.64
  4. Step 4: Simplify right side
    112,994.43x = 7,862,308,988.46
  5. Step 5: Solve for x
    x = 7,862,308,988.46/112,994.43
  6. Step 6: Final answer
    x = 69,581.39

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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.