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Finding the Fourth Proportional to 479,803.91, 718,918.14 and 164,088.59

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Solution

The fourth proportional to 479,803.91, 718,918.14 and 164,088.59 is: 245,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,803.91 : 718,918.14 = 164,088.59 : x
  2. Step 2: Convert to fraction form
    479,803.91/718,918.14 = 164,088.59/x
  3. Step 3: Cross multiply
    479,803.91x = 718,918.14 × 164,088.59
  4. Step 4: Simplify right side
    479,803.91x = 117,966,263,918.02
  5. Step 5: Solve for x
    x = 117,966,263,918.02/479,803.91
  6. Step 6: Final answer
    x = 245,863.49

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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.