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Finding the Fourth Proportional to 249,234, 343,939.80 and 141,803.76

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Solution

The fourth proportional to 249,234, 343,939.80 and 141,803.76 is: 195,687.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,234 : 343,939.80 = 141,803.76 : x
  2. Step 2: Convert to fraction form
    249,234/343,939.80 = 141,803.76/x
  3. Step 3: Cross multiply
    249,234x = 343,939.80 × 141,803.76
  4. Step 4: Simplify right side
    249,234x = 48,771,956,853.65
  5. Step 5: Solve for x
    x = 48,771,956,853.65/249,234
  6. Step 6: Final answer
    x = 195,687.41

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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.