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Finding the Fourth Proportional to 264,005.40, 396,008.10 and 124,037.40

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Solution

The fourth proportional to 264,005.40, 396,008.10 and 124,037.40 is: 186,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,005.40 : 396,008.10 = 124,037.40 : x
  2. Step 2: Convert to fraction form
    264,005.40/396,008.10 = 124,037.40/x
  3. Step 3: Cross multiply
    264,005.40x = 396,008.10 × 124,037.40
  4. Step 4: Simplify right side
    264,005.40x = 49,119,815,102.94
  5. Step 5: Solve for x
    x = 49,119,815,102.94/264,005.40
  6. Step 6: Final answer
    x = 186,056.10

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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.