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Finding the Fourth Proportional to 157,903.25, 236,859.19 and 52,718.45

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Solution

The fourth proportional to 157,903.25, 236,859.19 and 52,718.45 is: 79,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,903.25 : 236,859.19 = 52,718.45 : x
  2. Step 2: Convert to fraction form
    157,903.25/236,859.19 = 52,718.45/x
  3. Step 3: Cross multiply
    157,903.25x = 236,859.19 × 52,718.45
  4. Step 4: Simplify right side
    157,903.25x = 12,486,848,048.96
  5. Step 5: Solve for x
    x = 12,486,848,048.96/157,903.25
  6. Step 6: Final answer
    x = 79,079.11

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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.