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Finding the Fourth Proportional to 127,347.30, 175,728.98 and 73,635.80

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Solution

The fourth proportional to 127,347.30, 175,728.98 and 73,635.80 is: 101,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,347.30 : 175,728.98 = 73,635.80 : x
  2. Step 2: Convert to fraction form
    127,347.30/175,728.98 = 73,635.80/x
  3. Step 3: Cross multiply
    127,347.30x = 175,728.98 × 73,635.80
  4. Step 4: Simplify right side
    127,347.30x = 12,939,944,025.48
  5. Step 5: Solve for x
    x = 12,939,944,025.48/127,347.30
  6. Step 6: Final answer
    x = 101,611.45

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1.5x scale

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.