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Finding the Fourth Proportional to 157,653.92, 236,699.52 and 98,721.44

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Solution

The fourth proportional to 157,653.92, 236,699.52 and 98,721.44 is: 148,219.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,653.92 : 236,699.52 = 98,721.44 : x
  2. Step 2: Convert to fraction form
    157,653.92/236,699.52 = 98,721.44/x
  3. Step 3: Cross multiply
    157,653.92x = 236,699.52 × 98,721.44
  4. Step 4: Simplify right side
    157,653.92x = 23,367,317,461.71
  5. Step 5: Solve for x
    x = 23,367,317,461.71/157,653.92
  6. Step 6: Final answer
    x = 148,219.07

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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.