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Finding the Fourth Proportional to 144,670.84, 216,935.10 and 60,405.70

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Solution

The fourth proportional to 144,670.84, 216,935.10 and 60,405.70 is: 90,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,670.84 : 216,935.10 = 60,405.70 : x
  2. Step 2: Convert to fraction form
    144,670.84/216,935.10 = 60,405.70/x
  3. Step 3: Cross multiply
    144,670.84x = 216,935.10 × 60,405.70
  4. Step 4: Simplify right side
    144,670.84x = 13,104,116,570.07
  5. Step 5: Solve for x
    x = 13,104,116,570.07/144,670.84
  6. Step 6: Final answer
    x = 90,578.84

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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.