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Finding the Fourth Proportional to 298,710.66, 448,076.88 and 99,048.51

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Solution

The fourth proportional to 298,710.66, 448,076.88 and 99,048.51 is: 148,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,710.66 : 448,076.88 = 99,048.51 : x
  2. Step 2: Convert to fraction form
    298,710.66/448,076.88 = 99,048.51/x
  3. Step 3: Cross multiply
    298,710.66x = 448,076.88 × 99,048.51
  4. Step 4: Simplify right side
    298,710.66x = 44,381,347,329.45
  5. Step 5: Solve for x
    x = 44,381,347,329.45/298,710.66
  6. Step 6: Final answer
    x = 148,576.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.