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Finding the Fourth Proportional to 114,080.78, 157,431.93 and 63,779.78

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Solution

The fourth proportional to 114,080.78, 157,431.93 and 63,779.78 is: 88,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,080.78 : 157,431.93 = 63,779.78 : x
  2. Step 2: Convert to fraction form
    114,080.78/157,431.93 = 63,779.78/x
  3. Step 3: Cross multiply
    114,080.78x = 157,431.93 × 63,779.78
  4. Step 4: Simplify right side
    114,080.78x = 10,040,973,860.38
  5. Step 5: Solve for x
    x = 10,040,973,860.38/114,080.78
  6. Step 6: Final answer
    x = 88,016.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.