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Finding the Fourth Proportional to 70,487.71, 97,401.80 and 51,334.16

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Solution

The fourth proportional to 70,487.71, 97,401.80 and 51,334.16 is: 70,934.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,487.71 : 97,401.80 = 51,334.16 : x
  2. Step 2: Convert to fraction form
    70,487.71/97,401.80 = 51,334.16/x
  3. Step 3: Cross multiply
    70,487.71x = 97,401.80 × 51,334.16
  4. Step 4: Simplify right side
    70,487.71x = 5,000,039,226.81
  5. Step 5: Solve for x
    x = 5,000,039,226.81/70,487.71
  6. Step 6: Final answer
    x = 70,934.91

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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.