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Finding the Fourth Proportional to 157,646.40, 236,469.60 and 110,407.20

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Solution

The fourth proportional to 157,646.40, 236,469.60 and 110,407.20 is: 165,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,646.40 : 236,469.60 = 110,407.20 : x
  2. Step 2: Convert to fraction form
    157,646.40/236,469.60 = 110,407.20/x
  3. Step 3: Cross multiply
    157,646.40x = 236,469.60 × 110,407.20
  4. Step 4: Simplify right side
    157,646.40x = 26,107,946,421.12
  5. Step 5: Solve for x
    x = 26,107,946,421.12/157,646.40
  6. Step 6: Final answer
    x = 165,610.80

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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.