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Finding the Fourth Proportional to 353,047.62, 529,566.83 and 86,810.45

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Solution

The fourth proportional to 353,047.62, 529,566.83 and 86,810.45 is: 130,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,047.62 : 529,566.83 = 86,810.45 : x
  2. Step 2: Convert to fraction form
    353,047.62/529,566.83 = 86,810.45/x
  3. Step 3: Cross multiply
    353,047.62x = 529,566.83 × 86,810.45
  4. Step 4: Simplify right side
    353,047.62x = 45,971,931,735.49
  5. Step 5: Solve for x
    x = 45,971,931,735.49/353,047.62
  6. Step 6: Final answer
    x = 130,214.54

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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.