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Finding the Fourth Proportional to 124,210, 171,453 and 73,907.92

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Solution

The fourth proportional to 124,210, 171,453 and 73,907.92 is: 102,018.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,210 : 171,453 = 73,907.92 : x
  2. Step 2: Convert to fraction form
    124,210/171,453 = 73,907.92/x
  3. Step 3: Cross multiply
    124,210x = 171,453 × 73,907.92
  4. Step 4: Simplify right side
    124,210x = 12,671,734,607.76
  5. Step 5: Solve for x
    x = 12,671,734,607.76/124,210
  6. Step 6: Final answer
    x = 102,018.63

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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.