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Finding the Fourth Proportional to 249,719, 344,606.98 and 136,541.75

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Solution

The fourth proportional to 249,719, 344,606.98 and 136,541.75 is: 188,424.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,719 : 344,606.98 = 136,541.75 : x
  2. Step 2: Convert to fraction form
    249,719/344,606.98 = 136,541.75/x
  3. Step 3: Cross multiply
    249,719x = 344,606.98 × 136,541.75
  4. Step 4: Simplify right side
    249,719x = 47,053,240,111.42
  5. Step 5: Solve for x
    x = 47,053,240,111.42/249,719
  6. Step 6: Final answer
    x = 188,424.75

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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.