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Finding the Fourth Proportional to 183,712.80, 275,569.20 and 127,725.60

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Solution

The fourth proportional to 183,712.80, 275,569.20 and 127,725.60 is: 191,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,712.80 : 275,569.20 = 127,725.60 : x
  2. Step 2: Convert to fraction form
    183,712.80/275,569.20 = 127,725.60/x
  3. Step 3: Cross multiply
    183,712.80x = 275,569.20 × 127,725.60
  4. Step 4: Simplify right side
    183,712.80x = 35,197,241,411.52
  5. Step 5: Solve for x
    x = 35,197,241,411.52/183,712.80
  6. Step 6: Final answer
    x = 191,588.40

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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.