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Finding the Fourth Proportional to 448,018.24, 672,158.70 and 132,483.40

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Solution

The fourth proportional to 448,018.24, 672,158.70 and 132,483.40 is: 198,763.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,018.24 : 672,158.70 = 132,483.40 : x
  2. Step 2: Convert to fraction form
    448,018.24/672,158.70 = 132,483.40/x
  3. Step 3: Cross multiply
    448,018.24x = 672,158.70 × 132,483.40
  4. Step 4: Simplify right side
    448,018.24x = 89,049,869,915.58
  5. Step 5: Solve for x
    x = 89,049,869,915.58/448,018.24
  6. Step 6: Final answer
    x = 198,763.94

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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.