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Finding the Fourth Proportional to 255,526.80, 383,375.48 and 113,352.51

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Solution

The fourth proportional to 255,526.80, 383,375.48 and 113,352.51 is: 170,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,526.80 : 383,375.48 = 113,352.51 : x
  2. Step 2: Convert to fraction form
    255,526.80/383,375.48 = 113,352.51/x
  3. Step 3: Cross multiply
    255,526.80x = 383,375.48 × 113,352.51
  4. Step 4: Simplify right side
    255,526.80x = 43,456,574,438.96
  5. Step 5: Solve for x
    x = 43,456,574,438.96/255,526.80
  6. Step 6: Final answer
    x = 170,066.60

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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.