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Finding the Fourth Proportional to 556,045.89, 834,068.93 and 135,321.77

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Solution

The fourth proportional to 556,045.89, 834,068.93 and 135,321.77 is: 202,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,045.89 : 834,068.93 = 135,321.77 : x
  2. Step 2: Convert to fraction form
    556,045.89/834,068.93 = 135,321.77/x
  3. Step 3: Cross multiply
    556,045.89x = 834,068.93 × 135,321.77
  4. Step 4: Simplify right side
    556,045.89x = 112,867,679,062.65
  5. Step 5: Solve for x
    x = 112,867,679,062.65/556,045.89
  6. Step 6: Final answer
    x = 202,982.67

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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.