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Finding the Fourth Proportional to 242,940.78, 364,411.08 and 124,536.60

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Solution

The fourth proportional to 242,940.78, 364,411.08 and 124,536.60 is: 186,804.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,940.78 : 364,411.08 = 124,536.60 : x
  2. Step 2: Convert to fraction form
    242,940.78/364,411.08 = 124,536.60/x
  3. Step 3: Cross multiply
    242,940.78x = 364,411.08 × 124,536.60
  4. Step 4: Simplify right side
    242,940.78x = 45,382,516,905.53
  5. Step 5: Solve for x
    x = 45,382,516,905.53/242,940.78
  6. Step 6: Final answer
    x = 186,804.85

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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.