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Finding the Fourth Proportional to 504,870.90, 757,142.01 and 167,821.20

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Solution

The fourth proportional to 504,870.90, 757,142.01 and 167,821.20 is: 251,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,870.90 : 757,142.01 = 167,821.20 : x
  2. Step 2: Convert to fraction form
    504,870.90/757,142.01 = 167,821.20/x
  3. Step 3: Cross multiply
    504,870.90x = 757,142.01 × 167,821.20
  4. Step 4: Simplify right side
    504,870.90x = 127,064,480,688.61
  5. Step 5: Solve for x
    x = 127,064,480,688.61/504,870.90
  6. Step 6: Final answer
    x = 251,677.17

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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.