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Finding the Fourth Proportional to 249,786, 344,704.95 and 136,609.02

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Solution

The fourth proportional to 249,786, 344,704.95 and 136,609.02 is: 188,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,786 : 344,704.95 = 136,609.02 : x
  2. Step 2: Convert to fraction form
    249,786/344,704.95 = 136,609.02/x
  3. Step 3: Cross multiply
    249,786x = 344,704.95 × 136,609.02
  4. Step 4: Simplify right side
    249,786x = 47,089,805,408.65
  5. Step 5: Solve for x
    x = 47,089,805,408.65/249,786
  6. Step 6: Final answer
    x = 188,520.60

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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.