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Finding the Fourth Proportional to 249,698, 344,583.36 and 136,521.68

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Solution

The fourth proportional to 249,698, 344,583.36 and 136,521.68 is: 188,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,698 : 344,583.36 = 136,521.68 : x
  2. Step 2: Convert to fraction form
    249,698/344,583.36 = 136,521.68/x
  3. Step 3: Cross multiply
    249,698x = 344,583.36 × 136,521.68
  4. Step 4: Simplify right side
    249,698x = 47,043,099,207.24
  5. Step 5: Solve for x
    x = 47,043,099,207.24/249,698
  6. Step 6: Final answer
    x = 188,399.98

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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.