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Finding the Fourth Proportional to 123,465.84, 185,071.64 and 48,555.62

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Solution

The fourth proportional to 123,465.84, 185,071.64 and 48,555.62 is: 72,783.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,465.84 : 185,071.64 = 48,555.62 : x
  2. Step 2: Convert to fraction form
    123,465.84/185,071.64 = 48,555.62/x
  3. Step 3: Cross multiply
    123,465.84x = 185,071.64 × 48,555.62
  4. Step 4: Simplify right side
    123,465.84x = 8,986,267,750.50
  5. Step 5: Solve for x
    x = 8,986,267,750.50/123,465.84
  6. Step 6: Final answer
    x = 72,783.44

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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.