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Finding the Fourth Proportional to 275,623.60, 413,041.80 and 157,044.40

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Solution

The fourth proportional to 275,623.60, 413,041.80 and 157,044.40 is: 235,342.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,623.60 : 413,041.80 = 157,044.40 : x
  2. Step 2: Convert to fraction form
    275,623.60/413,041.80 = 157,044.40/x
  3. Step 3: Cross multiply
    275,623.60x = 413,041.80 × 157,044.40
  4. Step 4: Simplify right side
    275,623.60x = 64,865,901,655.92
  5. Step 5: Solve for x
    x = 64,865,901,655.92/275,623.60
  6. Step 6: Final answer
    x = 235,342.34

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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.