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Finding the Fourth Proportional to 157,012.56, 235,540.56 and 57,154.08

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Solution

The fourth proportional to 157,012.56, 235,540.56 and 57,154.08 is: 85,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,012.56 : 235,540.56 = 57,154.08 : x
  2. Step 2: Convert to fraction form
    157,012.56/235,540.56 = 57,154.08/x
  3. Step 3: Cross multiply
    157,012.56x = 235,540.56 × 57,154.08
  4. Step 4: Simplify right side
    157,012.56x = 13,462,104,009.48
  5. Step 5: Solve for x
    x = 13,462,104,009.48/157,012.56
  6. Step 6: Final answer
    x = 85,739.03

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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.