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Finding the Fourth Proportional to 89,457.40, 134,069.46 and 36,807.40

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Solution

The fourth proportional to 89,457.40, 134,069.46 and 36,807.40 is: 55,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,457.40 : 134,069.46 = 36,807.40 : x
  2. Step 2: Convert to fraction form
    89,457.40/134,069.46 = 36,807.40/x
  3. Step 3: Cross multiply
    89,457.40x = 134,069.46 × 36,807.40
  4. Step 4: Simplify right side
    89,457.40x = 4,934,748,242.00
  5. Step 5: Solve for x
    x = 4,934,748,242.00/89,457.40
  6. Step 6: Final answer
    x = 55,163.11

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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.