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Finding the Fourth Proportional to 357,556.53, 536,327.76 and 144,318.78

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Solution

The fourth proportional to 357,556.53, 536,327.76 and 144,318.78 is: 216,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,556.53 : 536,327.76 = 144,318.78 : x
  2. Step 2: Convert to fraction form
    357,556.53/536,327.76 = 144,318.78/x
  3. Step 3: Cross multiply
    357,556.53x = 536,327.76 × 144,318.78
  4. Step 4: Simplify right side
    357,556.53x = 77,402,168,003.33
  5. Step 5: Solve for x
    x = 77,402,168,003.33/357,556.53
  6. Step 6: Final answer
    x = 216,475.33

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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.