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Finding the Fourth Proportional to 183,894.72, 253,802.16 and 112,315.92

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Solution

The fourth proportional to 183,894.72, 253,802.16 and 112,315.92 is: 155,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,894.72 : 253,802.16 = 112,315.92 : x
  2. Step 2: Convert to fraction form
    183,894.72/253,802.16 = 112,315.92/x
  3. Step 3: Cross multiply
    183,894.72x = 253,802.16 × 112,315.92
  4. Step 4: Simplify right side
    183,894.72x = 28,506,023,098.39
  5. Step 5: Solve for x
    x = 28,506,023,098.39/183,894.72
  6. Step 6: Final answer
    x = 155,012.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.