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Finding the Fourth Proportional to 192,386.81, 265,488.71 and 107,504.57

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Solution

The fourth proportional to 192,386.81, 265,488.71 and 107,504.57 is: 148,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,386.81 : 265,488.71 = 107,504.57 : x
  2. Step 2: Convert to fraction form
    192,386.81/265,488.71 = 107,504.57/x
  3. Step 3: Cross multiply
    192,386.81x = 265,488.71 × 107,504.57
  4. Step 4: Simplify right side
    192,386.81x = 28,541,249,070.88
  5. Step 5: Solve for x
    x = 28,541,249,070.88/192,386.81
  6. Step 6: Final answer
    x = 148,353.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.