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Finding the Fourth Proportional to 249,368.70, 344,131.00 and 141,945.65

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Solution

The fourth proportional to 249,368.70, 344,131.00 and 141,945.65 is: 195,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,368.70 : 344,131.00 = 141,945.65 : x
  2. Step 2: Convert to fraction form
    249,368.70/344,131.00 = 141,945.65/x
  3. Step 3: Cross multiply
    249,368.70x = 344,131.00 × 141,945.65
  4. Step 4: Simplify right side
    249,368.70x = 48,847,896,049.77
  5. Step 5: Solve for x
    x = 48,847,896,049.77/249,368.70
  6. Step 6: Final answer
    x = 195,886.24

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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.