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Finding the Fourth Proportional to 186,603.10, 279,494.35 and 154,215.11

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Solution

The fourth proportional to 186,603.10, 279,494.35 and 154,215.11 is: 230,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,603.10 : 279,494.35 = 154,215.11 : x
  2. Step 2: Convert to fraction form
    186,603.10/279,494.35 = 154,215.11/x
  3. Step 3: Cross multiply
    186,603.10x = 279,494.35 × 154,215.11
  4. Step 4: Simplify right side
    186,603.10x = 43,102,252,242.83
  5. Step 5: Solve for x
    x = 43,102,252,242.83/186,603.10
  6. Step 6: Final answer
    x = 230,983.58

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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.