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Finding the Fourth Proportional to 186,649.56, 279,975.40 and 46,408.20

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Solution

The fourth proportional to 186,649.56, 279,975.40 and 46,408.20 is: 69,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,649.56 : 279,975.40 = 46,408.20 : x
  2. Step 2: Convert to fraction form
    186,649.56/279,975.40 = 46,408.20/x
  3. Step 3: Cross multiply
    186,649.56x = 279,975.40 × 46,408.20
  4. Step 4: Simplify right side
    186,649.56x = 12,993,154,358.28
  5. Step 5: Solve for x
    x = 12,993,154,358.28/186,649.56
  6. Step 6: Final answer
    x = 69,612.56

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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.