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Finding the Fourth Proportional to 157,315.60, 235,584.60 and 104,438.80

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Solution

The fourth proportional to 157,315.60, 235,584.60 and 104,438.80 is: 156,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,315.60 : 235,584.60 = 104,438.80 : x
  2. Step 2: Convert to fraction form
    157,315.60/235,584.60 = 104,438.80/x
  3. Step 3: Cross multiply
    157,315.60x = 235,584.60 × 104,438.80
  4. Step 4: Simplify right side
    157,315.60x = 24,604,172,922.48
  5. Step 5: Solve for x
    x = 24,604,172,922.48/157,315.60
  6. Step 6: Final answer
    x = 156,400.08

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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.