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Finding the Fourth Proportional to 265,938.48, 398,683.20 and 116,068.68

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Solution

The fourth proportional to 265,938.48, 398,683.20 and 116,068.68 is: 174,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,938.48 : 398,683.20 = 116,068.68 : x
  2. Step 2: Convert to fraction form
    265,938.48/398,683.20 = 116,068.68/x
  3. Step 3: Cross multiply
    265,938.48x = 398,683.20 × 116,068.68
  4. Step 4: Simplify right side
    265,938.48x = 46,274,632,762.18
  5. Step 5: Solve for x
    x = 46,274,632,762.18/265,938.48
  6. Step 6: Final answer
    x = 174,005.03

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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.