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Finding the Fourth Proportional to 371,262.53, 556,804.61 and 171,390.87

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Solution

The fourth proportional to 371,262.53, 556,804.61 and 171,390.87 is: 257,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,262.53 : 556,804.61 = 171,390.87 : x
  2. Step 2: Convert to fraction form
    371,262.53/556,804.61 = 171,390.87/x
  3. Step 3: Cross multiply
    371,262.53x = 556,804.61 × 171,390.87
  4. Step 4: Simplify right side
    371,262.53x = 95,431,226,527.91
  5. Step 5: Solve for x
    x = 95,431,226,527.91/371,262.53
  6. Step 6: Final answer
    x = 257,045.13

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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.