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Finding the Fourth Proportional to 249,996.78, 344,987.10 and 136,817.10

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Solution

The fourth proportional to 249,996.78, 344,987.10 and 136,817.10 is: 188,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,996.78 : 344,987.10 = 136,817.10 : x
  2. Step 2: Convert to fraction form
    249,996.78/344,987.10 = 136,817.10/x
  3. Step 3: Cross multiply
    249,996.78x = 344,987.10 × 136,817.10
  4. Step 4: Simplify right side
    249,996.78x = 47,200,134,559.41
  5. Step 5: Solve for x
    x = 47,200,134,559.41/249,996.78
  6. Step 6: Final answer
    x = 188,802.97

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1.5x scale

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.