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Finding the Fourth Proportional to 249,411, 344,187.24 and 136,233.72

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Solution

The fourth proportional to 249,411, 344,187.24 and 136,233.72 is: 188,002.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,411 : 344,187.24 = 136,233.72 : x
  2. Step 2: Convert to fraction form
    249,411/344,187.24 = 136,233.72/x
  3. Step 3: Cross multiply
    249,411x = 344,187.24 × 136,233.72
  4. Step 4: Simplify right side
    249,411x = 46,889,908,081.73
  5. Step 5: Solve for x
    x = 46,889,908,081.73/249,411
  6. Step 6: Final answer
    x = 188,002.57

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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.