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Finding the Fourth Proportional to 88,842.48, 133,284.64 and 28,870.76

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Solution

The fourth proportional to 88,842.48, 133,284.64 and 28,870.76 is: 43,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,842.48 : 133,284.64 = 28,870.76 : x
  2. Step 2: Convert to fraction form
    88,842.48/133,284.64 = 28,870.76/x
  3. Step 3: Cross multiply
    88,842.48x = 133,284.64 × 28,870.76
  4. Step 4: Simplify right side
    88,842.48x = 3,848,028,853.13
  5. Step 5: Solve for x
    x = 3,848,028,853.13/88,842.48
  6. Step 6: Final answer
    x = 43,312.94

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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.