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Finding the Fourth Proportional to 186,679.60, 280,019.40 and 62,020.60

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Solution

The fourth proportional to 186,679.60, 280,019.40 and 62,020.60 is: 93,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,679.60 : 280,019.40 = 62,020.60 : x
  2. Step 2: Convert to fraction form
    186,679.60/280,019.40 = 62,020.60/x
  3. Step 3: Cross multiply
    186,679.60x = 280,019.40 × 62,020.60
  4. Step 4: Simplify right side
    186,679.60x = 17,366,971,199.64
  5. Step 5: Solve for x
    x = 17,366,971,199.64/186,679.60
  6. Step 6: Final answer
    x = 93,030.90

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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.