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Finding the Fourth Proportional to 177,624, 245,121.12 and 98,136

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Solution

The fourth proportional to 177,624, 245,121.12 and 98,136 is: 135,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,624 : 245,121.12 = 98,136 : x
  2. Step 2: Convert to fraction form
    177,624/245,121.12 = 98,136/x
  3. Step 3: Cross multiply
    177,624x = 245,121.12 × 98,136
  4. Step 4: Simplify right side
    177,624x = 24,055,206,232.32
  5. Step 5: Solve for x
    x = 24,055,206,232.32/177,624
  6. Step 6: Final answer
    x = 135,427.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.