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Finding the Fourth Proportional to 186,779.40, 279,912.12 and 80,035.58

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Solution

The fourth proportional to 186,779.40, 279,912.12 and 80,035.58 is: 119,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,779.40 : 279,912.12 = 80,035.58 : x
  2. Step 2: Convert to fraction form
    186,779.40/279,912.12 = 80,035.58/x
  3. Step 3: Cross multiply
    186,779.40x = 279,912.12 × 80,035.58
  4. Step 4: Simplify right side
    186,779.40x = 22,402,928,873.23
  5. Step 5: Solve for x
    x = 22,402,928,873.23/186,779.40
  6. Step 6: Final answer
    x = 119,943.25

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1.5x scale

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.