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Finding the Fourth Proportional to 357,720.99, 536,584.53 and 105,005.67

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Solution

The fourth proportional to 357,720.99, 536,584.53 and 105,005.67 is: 157,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,720.99 : 536,584.53 = 105,005.67 : x
  2. Step 2: Convert to fraction form
    357,720.99/536,584.53 = 105,005.67/x
  3. Step 3: Cross multiply
    357,720.99x = 536,584.53 × 105,005.67
  4. Step 4: Simplify right side
    357,720.99x = 56,344,418,084.29
  5. Step 5: Solve for x
    x = 56,344,418,084.29/357,720.99
  6. Step 6: Final answer
    x = 157,509.40

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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.