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Finding the Fourth Proportional to 157,680.60, 236,060.10 and 153,072.60

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Solution

The fourth proportional to 157,680.60, 236,060.10 and 153,072.60 is: 229,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,680.60 : 236,060.10 = 153,072.60 : x
  2. Step 2: Convert to fraction form
    157,680.60/236,060.10 = 153,072.60/x
  3. Step 3: Cross multiply
    157,680.60x = 236,060.10 × 153,072.60
  4. Step 4: Simplify right side
    157,680.60x = 36,134,333,263.26
  5. Step 5: Solve for x
    x = 36,134,333,263.26/157,680.60
  6. Step 6: Final answer
    x = 229,161.57

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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.