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Finding the Fourth Proportional to 506,068.11, 758,844.18 and 168,987.69

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Solution

The fourth proportional to 506,068.11, 758,844.18 and 168,987.69 is: 253,395.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,068.11 : 758,844.18 = 168,987.69 : x
  2. Step 2: Convert to fraction form
    506,068.11/758,844.18 = 168,987.69/x
  3. Step 3: Cross multiply
    506,068.11x = 758,844.18 × 168,987.69
  4. Step 4: Simplify right side
    506,068.11x = 128,235,325,048.14
  5. Step 5: Solve for x
    x = 128,235,325,048.14/506,068.11
  6. Step 6: Final answer
    x = 253,395.39

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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.