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Finding the Fourth Proportional to 70,371.51, 97,113.51 and 38,541.75

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Solution

The fourth proportional to 70,371.51, 97,113.51 and 38,541.75 is: 53,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,371.51 : 97,113.51 = 38,541.75 : x
  2. Step 2: Convert to fraction form
    70,371.51/97,113.51 = 38,541.75/x
  3. Step 3: Cross multiply
    70,371.51x = 97,113.51 × 38,541.75
  4. Step 4: Simplify right side
    70,371.51x = 3,742,924,624.04
  5. Step 5: Solve for x
    x = 3,742,924,624.04/70,371.51
  6. Step 6: Final answer
    x = 53,188.07

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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.