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Finding the Fourth Proportional to 103,258.56, 154,888.56 and 47,087.04

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Solution

The fourth proportional to 103,258.56, 154,888.56 and 47,087.04 is: 70,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,258.56 : 154,888.56 = 47,087.04 : x
  2. Step 2: Convert to fraction form
    103,258.56/154,888.56 = 47,087.04/x
  3. Step 3: Cross multiply
    103,258.56x = 154,888.56 × 47,087.04
  4. Step 4: Simplify right side
    103,258.56x = 7,293,243,820.26
  5. Step 5: Solve for x
    x = 7,293,243,820.26/103,258.56
  6. Step 6: Final answer
    x = 70,630.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.