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Finding the Fourth Proportional to 500,666.49, 751,045.90 and 163,708.87

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Solution

The fourth proportional to 500,666.49, 751,045.90 and 163,708.87 is: 245,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,666.49 : 751,045.90 = 163,708.87 : x
  2. Step 2: Convert to fraction form
    500,666.49/751,045.90 = 163,708.87/x
  3. Step 3: Cross multiply
    500,666.49x = 751,045.90 × 163,708.87
  4. Step 4: Simplify right side
    500,666.49x = 122,952,875,607.13
  5. Step 5: Solve for x
    x = 122,952,875,607.13/500,666.49
  6. Step 6: Final answer
    x = 245,578.40

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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.