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Finding the Fourth Proportional to 554,740.45, 832,157.15 and 155,380.88

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Solution

The fourth proportional to 554,740.45, 832,157.15 and 155,380.88 is: 233,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,740.45 : 832,157.15 = 155,380.88 : x
  2. Step 2: Convert to fraction form
    554,740.45/832,157.15 = 155,380.88/x
  3. Step 3: Cross multiply
    554,740.45x = 832,157.15 × 155,380.88
  4. Step 4: Simplify right side
    554,740.45x = 129,301,311,568.78
  5. Step 5: Solve for x
    x = 129,301,311,568.78/554,740.45
  6. Step 6: Final answer
    x = 233,084.34

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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.