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Finding the Fourth Proportional to 174,756.53, 262,091.59 and 74,905.40

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Solution

The fourth proportional to 174,756.53, 262,091.59 and 74,905.40 is: 112,339.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,756.53 : 262,091.59 = 74,905.40 : x
  2. Step 2: Convert to fraction form
    174,756.53/262,091.59 = 74,905.40/x
  3. Step 3: Cross multiply
    174,756.53x = 262,091.59 × 74,905.40
  4. Step 4: Simplify right side
    174,756.53x = 19,632,075,385.59
  5. Step 5: Solve for x
    x = 19,632,075,385.59/174,756.53
  6. Step 6: Final answer
    x = 112,339.58

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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.