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Finding the Fourth Proportional to 157,873.86, 236,866.68 and 98,640.18

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Solution

The fourth proportional to 157,873.86, 236,866.68 and 98,640.18 is: 147,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,873.86 : 236,866.68 = 98,640.18 : x
  2. Step 2: Convert to fraction form
    157,873.86/236,866.68 = 98,640.18/x
  3. Step 3: Cross multiply
    157,873.86x = 236,866.68 × 98,640.18
  4. Step 4: Simplify right side
    157,873.86x = 23,364,571,951.20
  5. Step 5: Solve for x
    x = 23,364,571,951.20/157,873.86
  6. Step 6: Final answer
    x = 147,995.19

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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.