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Finding the Fourth Proportional to 144,577.79, 216,918.54 and 64,609.05

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Solution

The fourth proportional to 144,577.79, 216,918.54 and 64,609.05 is: 96,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,577.79 : 216,918.54 = 64,609.05 : x
  2. Step 2: Convert to fraction form
    144,577.79/216,918.54 = 64,609.05/x
  3. Step 3: Cross multiply
    144,577.79x = 216,918.54 × 64,609.05
  4. Step 4: Simplify right side
    144,577.79x = 14,014,900,796.79
  5. Step 5: Solve for x
    x = 14,014,900,796.79/144,577.79
  6. Step 6: Final answer
    x = 96,936.75

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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.