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Finding the Fourth Proportional to 354,352.50, 531,482.59 and 101,622.78

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Solution

The fourth proportional to 354,352.50, 531,482.59 and 101,622.78 is: 152,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,352.50 : 531,482.59 = 101,622.78 : x
  2. Step 2: Convert to fraction form
    354,352.50/531,482.59 = 101,622.78/x
  3. Step 3: Cross multiply
    354,352.50x = 531,482.59 × 101,622.78
  4. Step 4: Simplify right side
    354,352.50x = 54,010,738,317.40
  5. Step 5: Solve for x
    x = 54,010,738,317.40/354,352.50
  6. Step 6: Final answer
    x = 152,420.93

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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.