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Finding the Fourth Proportional to 157,566.40, 236,522.40 and 87,409.60

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Solution

The fourth proportional to 157,566.40, 236,522.40 and 87,409.60 is: 131,210.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,566.40 : 236,522.40 = 87,409.60 : x
  2. Step 2: Convert to fraction form
    157,566.40/236,522.40 = 87,409.60/x
  3. Step 3: Cross multiply
    157,566.40x = 236,522.40 × 87,409.60
  4. Step 4: Simplify right side
    157,566.40x = 20,674,328,375.04
  5. Step 5: Solve for x
    x = 20,674,328,375.04/157,566.40
  6. Step 6: Final answer
    x = 131,210.26

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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.