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Finding the Fourth Proportional to 190,065.60, 284,752.80 and 154,814.40

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Solution

The fourth proportional to 190,065.60, 284,752.80 and 154,814.40 is: 231,940.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,065.60 : 284,752.80 = 154,814.40 : x
  2. Step 2: Convert to fraction form
    190,065.60/284,752.80 = 154,814.40/x
  3. Step 3: Cross multiply
    190,065.60x = 284,752.80 × 154,814.40
  4. Step 4: Simplify right side
    190,065.60x = 44,083,833,880.32
  5. Step 5: Solve for x
    x = 44,083,833,880.32/190,065.60
  6. Step 6: Final answer
    x = 231,940.10

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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.