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Finding the Fourth Proportional to 186,485.60, 279,698.70 and 61,826.60

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Solution

The fourth proportional to 186,485.60, 279,698.70 and 61,826.60 is: 92,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,485.60 : 279,698.70 = 61,826.60 : x
  2. Step 2: Convert to fraction form
    186,485.60/279,698.70 = 61,826.60/x
  3. Step 3: Cross multiply
    186,485.60x = 279,698.70 × 61,826.60
  4. Step 4: Simplify right side
    186,485.60x = 17,292,819,645.42
  5. Step 5: Solve for x
    x = 17,292,819,645.42/186,485.60
  6. Step 6: Final answer
    x = 92,730.05

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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.