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Finding the Fourth Proportional to 112,358, 168,586.20 and 53,235.92

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Solution

The fourth proportional to 112,358, 168,586.20 and 53,235.92 is: 79,877.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,358 : 168,586.20 = 53,235.92 : x
  2. Step 2: Convert to fraction form
    112,358/168,586.20 = 53,235.92/x
  3. Step 3: Cross multiply
    112,358x = 168,586.20 × 53,235.92
  4. Step 4: Simplify right side
    112,358x = 8,974,841,456.30
  5. Step 5: Solve for x
    x = 8,974,841,456.30/112,358
  6. Step 6: Final answer
    x = 79,877.19

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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.