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Finding the Fourth Proportional to 130,515.90, 182,328.60 and 130,515.90

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Solution

The fourth proportional to 130,515.90, 182,328.60 and 130,515.90 is: 182,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,515.90 : 182,328.60 = 130,515.90 : x
  2. Step 2: Convert to fraction form
    130,515.90/182,328.60 = 130,515.90/x
  3. Step 3: Cross multiply
    130,515.90x = 182,328.60 × 130,515.90
  4. Step 4: Simplify right side
    130,515.90x = 23,796,781,324.74
  5. Step 5: Solve for x
    x = 23,796,781,324.74/130,515.90
  6. Step 6: Final answer
    x = 182,328.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.