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Finding the Fourth Proportional to 417,612.70, 626,349.39 and 118,025.29

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Solution

The fourth proportional to 417,612.70, 626,349.39 and 118,025.29 is: 177,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,612.70 : 626,349.39 = 118,025.29 : x
  2. Step 2: Convert to fraction form
    417,612.70/626,349.39 = 118,025.29/x
  3. Step 3: Cross multiply
    417,612.70x = 626,349.39 × 118,025.29
  4. Step 4: Simplify right side
    417,612.70x = 73,925,068,396.07
  5. Step 5: Solve for x
    x = 73,925,068,396.07/417,612.70
  6. Step 6: Final answer
    x = 177,018.25

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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.