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Finding the Fourth Proportional to 124,833.60, 187,228.80 and 45,907.20

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Solution

The fourth proportional to 124,833.60, 187,228.80 and 45,907.20 is: 68,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,833.60 : 187,228.80 = 45,907.20 : x
  2. Step 2: Convert to fraction form
    124,833.60/187,228.80 = 45,907.20/x
  3. Step 3: Cross multiply
    124,833.60x = 187,228.80 × 45,907.20
  4. Step 4: Simplify right side
    124,833.60x = 8,595,149,967.36
  5. Step 5: Solve for x
    x = 8,595,149,967.36/124,833.60
  6. Step 6: Final answer
    x = 68,852.86

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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.