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Finding the Fourth Proportional to 127,236.64, 175,591.92 and 70,653.28

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Solution

The fourth proportional to 127,236.64, 175,591.92 and 70,653.28 is: 97,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,236.64 : 175,591.92 = 70,653.28 : x
  2. Step 2: Convert to fraction form
    127,236.64/175,591.92 = 70,653.28/x
  3. Step 3: Cross multiply
    127,236.64x = 175,591.92 × 70,653.28
  4. Step 4: Simplify right side
    127,236.64x = 12,406,145,089.50
  5. Step 5: Solve for x
    x = 12,406,145,089.50/127,236.64
  6. Step 6: Final answer
    x = 97,504.50

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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.