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Finding the Fourth Proportional to 103,435.80, 155,153.70 and 96,054.68

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Solution

The fourth proportional to 103,435.80, 155,153.70 and 96,054.68 is: 144,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,435.80 : 155,153.70 = 96,054.68 : x
  2. Step 2: Convert to fraction form
    103,435.80/155,153.70 = 96,054.68/x
  3. Step 3: Cross multiply
    103,435.80x = 155,153.70 × 96,054.68
  4. Step 4: Simplify right side
    103,435.80x = 14,903,239,004.32
  5. Step 5: Solve for x
    x = 14,903,239,004.32/103,435.80
  6. Step 6: Final answer
    x = 144,082.02

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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.