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Finding the Fourth Proportional to 134,245, 201,386.94 and 40,750.84

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Solution

The fourth proportional to 134,245, 201,386.94 and 40,750.84 is: 61,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,245 : 201,386.94 = 40,750.84 : x
  2. Step 2: Convert to fraction form
    134,245/201,386.94 = 40,750.84/x
  3. Step 3: Cross multiply
    134,245x = 201,386.94 × 40,750.84
  4. Step 4: Simplify right side
    134,245x = 8,206,686,970.03
  5. Step 5: Solve for x
    x = 8,206,686,970.03/134,245
  6. Step 6: Final answer
    x = 61,132.16

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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.