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Finding the Fourth Proportional to 158,922,381.60, 238,383,572.40 and 137,381,306.40

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Solution

The fourth proportional to 158,922,381.60, 238,383,572.40 and 137,381,306.40 is: 206,071,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,922,381.60 : 238,383,572.40 = 137,381,306.40 : x
  2. Step 2: Convert to fraction form
    158,922,381.60/238,383,572.40 = 137,381,306.40/x
  3. Step 3: Cross multiply
    158,922,381.60x = 238,383,572.40 × 137,381,306.40
  4. Step 4: Simplify right side
    158,922,381.60x = 32,749,446,600,610,984
  5. Step 5: Solve for x
    x = 32,749,446,600,610,984/158,922,381.60
  6. Step 6: Final answer
    x = 206,071,959.60

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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.