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Finding the Fourth Proportional to 86,480.71, 119,297.99 and 70,366.01

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Solution

The fourth proportional to 86,480.71, 119,297.99 and 70,366.01 is: 97,068.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,480.71 : 119,297.99 = 70,366.01 : x
  2. Step 2: Convert to fraction form
    86,480.71/119,297.99 = 70,366.01/x
  3. Step 3: Cross multiply
    86,480.71x = 119,297.99 × 70,366.01
  4. Step 4: Simplify right side
    86,480.71x = 8,394,523,557.32
  5. Step 5: Solve for x
    x = 8,394,523,557.32/86,480.71
  6. Step 6: Final answer
    x = 97,068.16

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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.