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Finding the Fourth Proportional to 88,970.87, 133,318.06 and 56,069.75

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Solution

The fourth proportional to 88,970.87, 133,318.06 and 56,069.75 is: 84,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,970.87 : 133,318.06 = 56,069.75 : x
  2. Step 2: Convert to fraction form
    88,970.87/133,318.06 = 56,069.75/x
  3. Step 3: Cross multiply
    88,970.87x = 133,318.06 × 56,069.75
  4. Step 4: Simplify right side
    88,970.87x = 7,475,110,294.69
  5. Step 5: Solve for x
    x = 7,475,110,294.69/88,970.87
  6. Step 6: Final answer
    x = 84,017.50

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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.