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Finding the Fourth Proportional to 186,483.36, 279,722.98 and 111,624.40

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Solution

The fourth proportional to 186,483.36, 279,722.98 and 111,624.40 is: 167,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,483.36 : 279,722.98 = 111,624.40 : x
  2. Step 2: Convert to fraction form
    186,483.36/279,722.98 = 111,624.40/x
  3. Step 3: Cross multiply
    186,483.36x = 279,722.98 × 111,624.40
  4. Step 4: Simplify right side
    186,483.36x = 31,223,909,808.71
  5. Step 5: Solve for x
    x = 31,223,909,808.71/186,483.36
  6. Step 6: Final answer
    x = 167,435.37

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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.