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Finding the Fourth Proportional to 70,503.18, 97,300.62 and 38,678.28

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Solution

The fourth proportional to 70,503.18, 97,300.62 and 38,678.28 is: 53,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,503.18 : 97,300.62 = 38,678.28 : x
  2. Step 2: Convert to fraction form
    70,503.18/97,300.62 = 38,678.28/x
  3. Step 3: Cross multiply
    70,503.18x = 97,300.62 × 38,678.28
  4. Step 4: Simplify right side
    70,503.18x = 3,763,420,624.53
  5. Step 5: Solve for x
    x = 3,763,420,624.53/70,503.18
  6. Step 6: Final answer
    x = 53,379.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.