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Finding the Fourth Proportional to 172,983, 238,716.54 and 93,495

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Solution

The fourth proportional to 172,983, 238,716.54 and 93,495 is: 129,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,983 : 238,716.54 = 93,495 : x
  2. Step 2: Convert to fraction form
    172,983/238,716.54 = 93,495/x
  3. Step 3: Cross multiply
    172,983x = 238,716.54 × 93,495
  4. Step 4: Simplify right side
    172,983x = 22,318,802,907.30
  5. Step 5: Solve for x
    x = 22,318,802,907.30/172,983
  6. Step 6: Final answer
    x = 129,023.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.