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Finding the Fourth Proportional to 186,241.16, 257,039.88 and 104,578.58

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Solution

The fourth proportional to 186,241.16, 257,039.88 and 104,578.58 is: 144,333.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,241.16 : 257,039.88 = 104,578.58 : x
  2. Step 2: Convert to fraction form
    186,241.16/257,039.88 = 104,578.58/x
  3. Step 3: Cross multiply
    186,241.16x = 257,039.88 × 104,578.58
  4. Step 4: Simplify right side
    186,241.16x = 26,880,864,368.57
  5. Step 5: Solve for x
    x = 26,880,864,368.57/186,241.16
  6. Step 6: Final answer
    x = 144,333.64

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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.