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Finding the Fourth Proportional to 186,000.30, 279,109.80 and 67,683.60

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Solution

The fourth proportional to 186,000.30, 279,109.80 and 67,683.60 is: 101,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,000.30 : 279,109.80 = 67,683.60 : x
  2. Step 2: Convert to fraction form
    186,000.30/279,109.80 = 67,683.60/x
  3. Step 3: Cross multiply
    186,000.30x = 279,109.80 × 67,683.60
  4. Step 4: Simplify right side
    186,000.30x = 18,891,156,059.28
  5. Step 5: Solve for x
    x = 18,891,156,059.28/186,000.30
  6. Step 6: Final answer
    x = 101,565.19

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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.