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Finding the Fourth Proportional to 157,766.40, 236,390.40 and 148,435.20

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Solution

The fourth proportional to 157,766.40, 236,390.40 and 148,435.20 is: 222,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,766.40 : 236,390.40 = 148,435.20 : x
  2. Step 2: Convert to fraction form
    157,766.40/236,390.40 = 148,435.20/x
  3. Step 3: Cross multiply
    157,766.40x = 236,390.40 × 148,435.20
  4. Step 4: Simplify right side
    157,766.40x = 35,088,656,302.08
  5. Step 5: Solve for x
    x = 35,088,656,302.08/157,766.40
  6. Step 6: Final answer
    x = 222,408.93

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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.