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Finding the Fourth Proportional to 352,671.40, 529,007.10 and 103,353.40

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Solution

The fourth proportional to 352,671.40, 529,007.10 and 103,353.40 is: 155,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,671.40 : 529,007.10 = 103,353.40 : x
  2. Step 2: Convert to fraction form
    352,671.40/529,007.10 = 103,353.40/x
  3. Step 3: Cross multiply
    352,671.40x = 529,007.10 × 103,353.40
  4. Step 4: Simplify right side
    352,671.40x = 54,674,682,409.14
  5. Step 5: Solve for x
    x = 54,674,682,409.14/352,671.40
  6. Step 6: Final answer
    x = 155,030.10

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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.