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Finding the Fourth Proportional to 142,809.30, 214,287.30 and 62,903.25

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Solution

The fourth proportional to 142,809.30, 214,287.30 and 62,903.25 is: 94,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,809.30 : 214,287.30 = 62,903.25 : x
  2. Step 2: Convert to fraction form
    142,809.30/214,287.30 = 62,903.25/x
  3. Step 3: Cross multiply
    142,809.30x = 214,287.30 × 62,903.25
  4. Step 4: Simplify right side
    142,809.30x = 13,479,367,603.73
  5. Step 5: Solve for x
    x = 13,479,367,603.73/142,809.30
  6. Step 6: Final answer
    x = 94,387.18

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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.