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Finding the Fourth Proportional to 114,938.40, 172,395.45 and 36,048.45

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Solution

The fourth proportional to 114,938.40, 172,395.45 and 36,048.45 is: 54,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,938.40 : 172,395.45 = 36,048.45 : x
  2. Step 2: Convert to fraction form
    114,938.40/172,395.45 = 36,048.45/x
  3. Step 3: Cross multiply
    114,938.40x = 172,395.45 × 36,048.45
  4. Step 4: Simplify right side
    114,938.40x = 6,214,588,759.55
  5. Step 5: Solve for x
    x = 6,214,588,759.55/114,938.40
  6. Step 6: Final answer
    x = 54,068.86

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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.