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Finding the Fourth Proportional to 211,153.95, 316,751.03 and 59,350.63

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Solution

The fourth proportional to 211,153.95, 316,751.03 and 59,350.63 is: 89,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,153.95 : 316,751.03 = 59,350.63 : x
  2. Step 2: Convert to fraction form
    211,153.95/316,751.03 = 59,350.63/x
  3. Step 3: Cross multiply
    211,153.95x = 316,751.03 × 59,350.63
  4. Step 4: Simplify right side
    211,153.95x = 18,799,373,183.65
  5. Step 5: Solve for x
    x = 18,799,373,183.65/211,153.95
  6. Step 6: Final answer
    x = 89,031.60

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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.