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Finding the Fourth Proportional to 114,955, 172,432.32 and 36,075.28

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Solution

The fourth proportional to 114,955, 172,432.32 and 36,075.28 is: 54,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,955 : 172,432.32 = 36,075.28 : x
  2. Step 2: Convert to fraction form
    114,955/172,432.32 = 36,075.28/x
  3. Step 3: Cross multiply
    114,955x = 172,432.32 × 36,075.28
  4. Step 4: Simplify right side
    114,955x = 6,220,544,225.05
  5. Step 5: Solve for x
    x = 6,220,544,225.05/114,955
  6. Step 6: Final answer
    x = 54,112.86

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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.