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Finding the Fourth Proportional to 355,955.28, 533,994.48 and 119,320.80

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Solution

The fourth proportional to 355,955.28, 533,994.48 and 119,320.80 is: 179,001.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,955.28 : 533,994.48 = 119,320.80 : x
  2. Step 2: Convert to fraction form
    355,955.28/533,994.48 = 119,320.80/x
  3. Step 3: Cross multiply
    355,955.28x = 533,994.48 × 119,320.80
  4. Step 4: Simplify right side
    355,955.28x = 63,716,648,549.18
  5. Step 5: Solve for x
    x = 63,716,648,549.18/355,955.28
  6. Step 6: Final answer
    x = 179,001.84

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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.