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Finding the Fourth Proportional to 123,435.60, 185,133.60 and 44,509.20

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Solution

The fourth proportional to 123,435.60, 185,133.60 and 44,509.20 is: 66,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,435.60 : 185,133.60 = 44,509.20 : x
  2. Step 2: Convert to fraction form
    123,435.60/185,133.60 = 44,509.20/x
  3. Step 3: Cross multiply
    123,435.60x = 185,133.60 × 44,509.20
  4. Step 4: Simplify right side
    123,435.60x = 8,240,148,429.12
  5. Step 5: Solve for x
    x = 8,240,148,429.12/123,435.60
  6. Step 6: Final answer
    x = 66,756.66

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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.