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Finding the Fourth Proportional to 209,560.48, 314,343.98 and 116,656.72

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Solution

The fourth proportional to 209,560.48, 314,343.98 and 116,656.72 is: 174,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,560.48 : 314,343.98 = 116,656.72 : x
  2. Step 2: Convert to fraction form
    209,560.48/314,343.98 = 116,656.72/x
  3. Step 3: Cross multiply
    209,560.48x = 314,343.98 × 116,656.72
  4. Step 4: Simplify right side
    209,560.48x = 36,670,337,658.55
  5. Step 5: Solve for x
    x = 36,670,337,658.55/209,560.48
  6. Step 6: Final answer
    x = 174,986.89

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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.