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Finding the Fourth Proportional to 127,418.96, 175,822.80 and 70,048.80

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Solution

The fourth proportional to 127,418.96, 175,822.80 and 70,048.80 is: 96,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,418.96 : 175,822.80 = 70,048.80 : x
  2. Step 2: Convert to fraction form
    127,418.96/175,822.80 = 70,048.80/x
  3. Step 3: Cross multiply
    127,418.96x = 175,822.80 × 70,048.80
  4. Step 4: Simplify right side
    127,418.96x = 12,316,176,152.64
  5. Step 5: Solve for x
    x = 12,316,176,152.64/127,418.96
  6. Step 6: Final answer
    x = 96,658.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.