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Finding the Fourth Proportional to 318,068.46, 438,924.69 and 174,828.06

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Solution

The fourth proportional to 318,068.46, 438,924.69 and 174,828.06 is: 241,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,068.46 : 438,924.69 = 174,828.06 : x
  2. Step 2: Convert to fraction form
    318,068.46/438,924.69 = 174,828.06/x
  3. Step 3: Cross multiply
    318,068.46x = 438,924.69 × 174,828.06
  4. Step 4: Simplify right side
    318,068.46x = 76,736,352,038.80
  5. Step 5: Solve for x
    x = 76,736,352,038.80/318,068.46
  6. Step 6: Final answer
    x = 241,257.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.