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Finding the Fourth Proportional to 74,482.40, 111,464.40 and 51,154.40

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Solution

The fourth proportional to 74,482.40, 111,464.40 and 51,154.40 is: 76,553.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,482.40 : 111,464.40 = 51,154.40 : x
  2. Step 2: Convert to fraction form
    74,482.40/111,464.40 = 51,154.40/x
  3. Step 3: Cross multiply
    74,482.40x = 111,464.40 × 51,154.40
  4. Step 4: Simplify right side
    74,482.40x = 5,701,894,503.36
  5. Step 5: Solve for x
    x = 5,701,894,503.36/74,482.40
  6. Step 6: Final answer
    x = 76,553.58

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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.