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Finding the Fourth Proportional to 186,719.40, 280,079.10 and 60,359.40

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Solution

The fourth proportional to 186,719.40, 280,079.10 and 60,359.40 is: 90,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,719.40 : 280,079.10 = 60,359.40 : x
  2. Step 2: Convert to fraction form
    186,719.40/280,079.10 = 60,359.40/x
  3. Step 3: Cross multiply
    186,719.40x = 280,079.10 × 60,359.40
  4. Step 4: Simplify right side
    186,719.40x = 16,905,406,428.54
  5. Step 5: Solve for x
    x = 16,905,406,428.54/186,719.40
  6. Step 6: Final answer
    x = 90,539.10

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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.