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Finding the Fourth Proportional to 249,809.54, 344,745.40 and 136,632.28

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Solution

The fourth proportional to 249,809.54, 344,745.40 and 136,632.28 is: 188,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,809.54 : 344,745.40 = 136,632.28 : x
  2. Step 2: Convert to fraction form
    249,809.54/344,745.40 = 136,632.28/x
  3. Step 3: Cross multiply
    249,809.54x = 344,745.40 × 136,632.28
  4. Step 4: Simplify right side
    249,809.54x = 47,103,350,021.51
  5. Step 5: Solve for x
    x = 47,103,350,021.51/249,809.54
  6. Step 6: Final answer
    x = 188,557.05

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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.