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Finding the Fourth Proportional to 114,806.48, 172,288.11 and 39,925.89

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Solution

The fourth proportional to 114,806.48, 172,288.11 and 39,925.89 is: 59,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,806.48 : 172,288.11 = 39,925.89 : x
  2. Step 2: Convert to fraction form
    114,806.48/172,288.11 = 39,925.89/x
  3. Step 3: Cross multiply
    114,806.48x = 172,288.11 × 39,925.89
  4. Step 4: Simplify right side
    114,806.48x = 6,878,756,128.17
  5. Step 5: Solve for x
    x = 6,878,756,128.17/114,806.48
  6. Step 6: Final answer
    x = 59,916.10

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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.