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Finding the Fourth Proportional to 158,580.80, 237,669.60 and 64,980.80

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Solution

The fourth proportional to 158,580.80, 237,669.60 and 64,980.80 is: 97,388.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,580.80 : 237,669.60 = 64,980.80 : x
  2. Step 2: Convert to fraction form
    158,580.80/237,669.60 = 64,980.80/x
  3. Step 3: Cross multiply
    158,580.80x = 237,669.60 × 64,980.80
  4. Step 4: Simplify right side
    158,580.80x = 15,443,960,743.68
  5. Step 5: Solve for x
    x = 15,443,960,743.68/158,580.80
  6. Step 6: Final answer
    x = 97,388.59

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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.