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Finding the Fourth Proportional to 144,447.84, 216,723.08 and 64,478.56

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Solution

The fourth proportional to 144,447.84, 216,723.08 and 64,478.56 is: 96,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,447.84 : 216,723.08 = 64,478.56 : x
  2. Step 2: Convert to fraction form
    144,447.84/216,723.08 = 64,478.56/x
  3. Step 3: Cross multiply
    144,447.84x = 216,723.08 × 64,478.56
  4. Step 4: Simplify right side
    144,447.84x = 13,973,992,117.16
  5. Step 5: Solve for x
    x = 13,973,992,117.16/144,447.84
  6. Step 6: Final answer
    x = 96,740.75

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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.