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Finding the Fourth Proportional to 713,018.68, 1,069,516.62 and 173,279.32

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Solution

The fourth proportional to 713,018.68, 1,069,516.62 and 173,279.32 is: 259,916.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,018.68 : 1,069,516.62 = 173,279.32 : x
  2. Step 2: Convert to fraction form
    713,018.68/1,069,516.62 = 173,279.32/x
  3. Step 3: Cross multiply
    713,018.68x = 1,069,516.62 × 173,279.32
  4. Step 4: Simplify right side
    713,018.68x = 185,325,112,642.30
  5. Step 5: Solve for x
    x = 185,325,112,642.30/713,018.68
  6. Step 6: Final answer
    x = 259,916.21

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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.