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Finding the Fourth Proportional to 370,459.02, 555,770.54 and 117,816.78

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Solution

The fourth proportional to 370,459.02, 555,770.54 and 117,816.78 is: 176,751.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,459.02 : 555,770.54 = 117,816.78 : x
  2. Step 2: Convert to fraction form
    370,459.02/555,770.54 = 117,816.78/x
  3. Step 3: Cross multiply
    370,459.02x = 555,770.54 × 117,816.78
  4. Step 4: Simplify right side
    370,459.02x = 65,479,095,736.20
  5. Step 5: Solve for x
    x = 65,479,095,736.20/370,459.02
  6. Step 6: Final answer
    x = 176,751.25

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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.