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Finding the Fourth Proportional to 127,457.28, 175,897.44 and 70,867.44

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Solution

The fourth proportional to 127,457.28, 175,897.44 and 70,867.44 is: 97,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,457.28 : 175,897.44 = 70,867.44 : x
  2. Step 2: Convert to fraction form
    127,457.28/175,897.44 = 70,867.44/x
  3. Step 3: Cross multiply
    127,457.28x = 175,897.44 × 70,867.44
  4. Step 4: Simplify right side
    127,457.28x = 12,465,401,275.35
  5. Step 5: Solve for x
    x = 12,465,401,275.35/127,457.28
  6. Step 6: Final answer
    x = 97,800.62

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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.