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Finding the Fourth Proportional to 298,705.51, 448,061.91 and 88,347.70

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Solution

The fourth proportional to 298,705.51, 448,061.91 and 88,347.70 is: 132,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,705.51 : 448,061.91 = 88,347.70 : x
  2. Step 2: Convert to fraction form
    298,705.51/448,061.91 = 88,347.70/x
  3. Step 3: Cross multiply
    298,705.51x = 448,061.91 × 88,347.70
  4. Step 4: Simplify right side
    298,705.51x = 39,585,239,206.11
  5. Step 5: Solve for x
    x = 39,585,239,206.11/298,705.51
  6. Step 6: Final answer
    x = 132,522.63

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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.