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Finding the Fourth Proportional to 54,359.40, 81,441.90 and 46,000.20

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Solution

The fourth proportional to 54,359.40, 81,441.90 and 46,000.20 is: 68,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,359.40 : 81,441.90 = 46,000.20 : x
  2. Step 2: Convert to fraction form
    54,359.40/81,441.90 = 46,000.20/x
  3. Step 3: Cross multiply
    54,359.40x = 81,441.90 × 46,000.20
  4. Step 4: Simplify right side
    54,359.40x = 3,746,343,688.38
  5. Step 5: Solve for x
    x = 3,746,343,688.38/54,359.40
  6. Step 6: Final answer
    x = 68,918.05

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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.