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Finding the Fourth Proportional to 133,030.62, 183,583.80 and 79,346.16

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Solution

The fourth proportional to 133,030.62, 183,583.80 and 79,346.16 is: 109,498.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030.62 : 183,583.80 = 79,346.16 : x
  2. Step 2: Convert to fraction form
    133,030.62/183,583.80 = 79,346.16/x
  3. Step 3: Cross multiply
    133,030.62x = 183,583.80 × 79,346.16
  4. Step 4: Simplify right side
    133,030.62x = 14,566,669,568.21
  5. Step 5: Solve for x
    x = 14,566,669,568.21/133,030.62
  6. Step 6: Final answer
    x = 109,498.62

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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.