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Finding the Fourth Proportional to 245,674.68, 368,386.62 and 112,440.69

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Solution

The fourth proportional to 245,674.68, 368,386.62 and 112,440.69 is: 168,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,674.68 : 368,386.62 = 112,440.69 : x
  2. Step 2: Convert to fraction form
    245,674.68/368,386.62 = 112,440.69/x
  3. Step 3: Cross multiply
    245,674.68x = 368,386.62 × 112,440.69
  4. Step 4: Simplify right side
    245,674.68x = 41,421,645,739.57
  5. Step 5: Solve for x
    x = 41,421,645,739.57/245,674.68
  6. Step 6: Final answer
    x = 168,603.64

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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.