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Finding the Fourth Proportional to 249,693.74, 344,577.94 and 136,523.78

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Solution

The fourth proportional to 249,693.74, 344,577.94 and 136,523.78 is: 188,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,693.74 : 344,577.94 = 136,523.78 : x
  2. Step 2: Convert to fraction form
    249,693.74/344,577.94 = 136,523.78/x
  3. Step 3: Cross multiply
    249,693.74x = 344,577.94 × 136,523.78
  4. Step 4: Simplify right side
    249,693.74x = 47,043,082,873.41
  5. Step 5: Solve for x
    x = 47,043,082,873.41/249,693.74
  6. Step 6: Final answer
    x = 188,403.13

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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.