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Finding the Fourth Proportional to 448,656.48, 672,880.96 and 133,037.28

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Solution

The fourth proportional to 448,656.48, 672,880.96 and 133,037.28 is: 199,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,656.48 : 672,880.96 = 133,037.28 : x
  2. Step 2: Convert to fraction form
    448,656.48/672,880.96 = 133,037.28/x
  3. Step 3: Cross multiply
    448,656.48x = 672,880.96 × 133,037.28
  4. Step 4: Simplify right side
    448,656.48x = 89,518,252,682.19
  5. Step 5: Solve for x
    x = 89,518,252,682.19/448,656.48
  6. Step 6: Final answer
    x = 199,525.15

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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.