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Finding the Fourth Proportional to 123,440.49, 185,154.54 and 43,482.42

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Solution

The fourth proportional to 123,440.49, 185,154.54 and 43,482.42 is: 65,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,440.49 : 185,154.54 = 43,482.42 : x
  2. Step 2: Convert to fraction form
    123,440.49/185,154.54 = 43,482.42/x
  3. Step 3: Cross multiply
    123,440.49x = 185,154.54 × 43,482.42
  4. Step 4: Simplify right side
    123,440.49x = 8,050,967,473.19
  5. Step 5: Solve for x
    x = 8,050,967,473.19/123,440.49
  6. Step 6: Final answer
    x = 65,221.45

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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.