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Finding the Fourth Proportional to 124,068.60, 186,045.30 and 53,911.80

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Solution

The fourth proportional to 124,068.60, 186,045.30 and 53,911.80 is: 80,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,068.60 : 186,045.30 = 53,911.80 : x
  2. Step 2: Convert to fraction form
    124,068.60/186,045.30 = 53,911.80/x
  3. Step 3: Cross multiply
    124,068.60x = 186,045.30 × 53,911.80
  4. Step 4: Simplify right side
    124,068.60x = 10,030,037,004.54
  5. Step 5: Solve for x
    x = 10,030,037,004.54/124,068.60
  6. Step 6: Final answer
    x = 80,842.67

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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.