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Finding the Fourth Proportional to 365,115.71, 547,725.81 and 112,417.58

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Solution

The fourth proportional to 365,115.71, 547,725.81 and 112,417.58 is: 168,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,115.71 : 547,725.81 = 112,417.58 : x
  2. Step 2: Convert to fraction form
    365,115.71/547,725.81 = 112,417.58/x
  3. Step 3: Cross multiply
    365,115.71x = 547,725.81 × 112,417.58
  4. Step 4: Simplify right side
    365,115.71x = 61,574,010,063.74
  5. Step 5: Solve for x
    x = 61,574,010,063.74/365,115.71
  6. Step 6: Final answer
    x = 168,642.46

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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.