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Finding the Fourth Proportional to 628,065.80, 942,099.15 and 154,751.16

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Solution

The fourth proportional to 628,065.80, 942,099.15 and 154,751.16 is: 232,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,065.80 : 942,099.15 = 154,751.16 : x
  2. Step 2: Convert to fraction form
    628,065.80/942,099.15 = 154,751.16/x
  3. Step 3: Cross multiply
    628,065.80x = 942,099.15 × 154,751.16
  4. Step 4: Simplify right side
    628,065.80x = 145,790,935,111.40
  5. Step 5: Solve for x
    x = 145,790,935,111.40/628,065.80
  6. Step 6: Final answer
    x = 232,126.85

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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.