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Finding the Fourth Proportional to 216,767.89, 325,123.13 and 98,412.01

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Solution

The fourth proportional to 216,767.89, 325,123.13 and 98,412.01 is: 147,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,767.89 : 325,123.13 = 98,412.01 : x
  2. Step 2: Convert to fraction form
    216,767.89/325,123.13 = 98,412.01/x
  3. Step 3: Cross multiply
    216,767.89x = 325,123.13 × 98,412.01
  4. Step 4: Simplify right side
    216,767.89x = 31,996,019,415.92
  5. Step 5: Solve for x
    x = 31,996,019,415.92/216,767.89
  6. Step 6: Final answer
    x = 147,604.98

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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.