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Finding the Fourth Proportional to 480,087.80, 720,131.70 and 164,547.80

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Solution

The fourth proportional to 480,087.80, 720,131.70 and 164,547.80 is: 246,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,087.80 : 720,131.70 = 164,547.80 : x
  2. Step 2: Convert to fraction form
    480,087.80/720,131.70 = 164,547.80/x
  3. Step 3: Cross multiply
    480,087.80x = 720,131.70 × 164,547.80
  4. Step 4: Simplify right side
    480,087.80x = 118,496,086,945.26
  5. Step 5: Solve for x
    x = 118,496,086,945.26/480,087.80
  6. Step 6: Final answer
    x = 246,821.70

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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.