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Finding the Fourth Proportional to 72,477.68, 108,715.08 and 41,246

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Solution

The fourth proportional to 72,477.68, 108,715.08 and 41,246 is: 61,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,477.68 : 108,715.08 = 41,246 : x
  2. Step 2: Convert to fraction form
    72,477.68/108,715.08 = 41,246/x
  3. Step 3: Cross multiply
    72,477.68x = 108,715.08 × 41,246
  4. Step 4: Simplify right side
    72,477.68x = 4,484,062,189.68
  5. Step 5: Solve for x
    x = 4,484,062,189.68/72,477.68
  6. Step 6: Final answer
    x = 61,868.18

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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.