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Finding the Fourth Proportional to 186,455.70, 279,683.55 and 115,596.90

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Solution

The fourth proportional to 186,455.70, 279,683.55 and 115,596.90 is: 173,395.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,455.70 : 279,683.55 = 115,596.90 : x
  2. Step 2: Convert to fraction form
    186,455.70/279,683.55 = 115,596.90/x
  3. Step 3: Cross multiply
    186,455.70x = 279,683.55 × 115,596.90
  4. Step 4: Simplify right side
    186,455.70x = 32,330,551,361.00
  5. Step 5: Solve for x
    x = 32,330,551,361.00/186,455.70
  6. Step 6: Final answer
    x = 173,395.35

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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.