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Finding the Fourth Proportional to 186,858.48, 257,870.40 and 106,297.68

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Solution

The fourth proportional to 186,858.48, 257,870.40 and 106,297.68 is: 146,694.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,858.48 : 257,870.40 = 106,297.68 : x
  2. Step 2: Convert to fraction form
    186,858.48/257,870.40 = 106,297.68/x
  3. Step 3: Cross multiply
    186,858.48x = 257,870.40 × 106,297.68
  4. Step 4: Simplify right side
    186,858.48x = 27,411,025,260.67
  5. Step 5: Solve for x
    x = 27,411,025,260.67/186,858.48
  6. Step 6: Final answer
    x = 146,694.04

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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.