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Finding the Fourth Proportional to 365,428.92, 548,237.70 and 112,703.70

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Solution

The fourth proportional to 365,428.92, 548,237.70 and 112,703.70 is: 169,084.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,428.92 : 548,237.70 = 112,703.70 : x
  2. Step 2: Convert to fraction form
    365,428.92/548,237.70 = 112,703.70/x
  3. Step 3: Cross multiply
    365,428.92x = 548,237.70 × 112,703.70
  4. Step 4: Simplify right side
    365,428.92x = 61,788,417,269.49
  5. Step 5: Solve for x
    x = 61,788,417,269.49/365,428.92
  6. Step 6: Final answer
    x = 169,084.64

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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.