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Finding the Fourth Proportional to 144,352.49, 216,490.80 and 43,126.52

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Solution

The fourth proportional to 144,352.49, 216,490.80 and 43,126.52 is: 64,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,352.49 : 216,490.80 = 43,126.52 : x
  2. Step 2: Convert to fraction form
    144,352.49/216,490.80 = 43,126.52/x
  3. Step 3: Cross multiply
    144,352.49x = 216,490.80 × 43,126.52
  4. Step 4: Simplify right side
    144,352.49x = 9,336,494,816.02
  5. Step 5: Solve for x
    x = 9,336,494,816.02/144,352.49
  6. Step 6: Final answer
    x = 64,678.45

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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.