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Finding the Fourth Proportional to 357,528.32, 536,285.52 and 144,290.56

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Solution

The fourth proportional to 357,528.32, 536,285.52 and 144,290.56 is: 216,433.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,528.32 : 536,285.52 = 144,290.56 : x
  2. Step 2: Convert to fraction form
    357,528.32/536,285.52 = 144,290.56/x
  3. Step 3: Cross multiply
    357,528.32x = 536,285.52 × 144,290.56
  4. Step 4: Simplify right side
    357,528.32x = 77,380,938,000.69
  5. Step 5: Solve for x
    x = 77,380,938,000.69/357,528.32
  6. Step 6: Final answer
    x = 216,433.03

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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.