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Finding the Fourth Proportional to 352,348.92, 528,348.15 and 112,431.38

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Solution

The fourth proportional to 352,348.92, 528,348.15 and 112,431.38 is: 168,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,348.92 : 528,348.15 = 112,431.38 : x
  2. Step 2: Convert to fraction form
    352,348.92/528,348.15 = 112,431.38/x
  3. Step 3: Cross multiply
    352,348.92x = 528,348.15 × 112,431.38
  4. Step 4: Simplify right side
    352,348.92x = 59,402,908,983.21
  5. Step 5: Solve for x
    x = 59,402,908,983.21/352,348.92
  6. Step 6: Final answer
    x = 168,591.15

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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.