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Finding the Fourth Proportional to 242,058.86, 333,811.95 and 154,871.55

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Solution

The fourth proportional to 242,058.86, 333,811.95 and 154,871.55 is: 213,576.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,058.86 : 333,811.95 = 154,871.55 : x
  2. Step 2: Convert to fraction form
    242,058.86/333,811.95 = 154,871.55/x
  3. Step 3: Cross multiply
    242,058.86x = 333,811.95 × 154,871.55
  4. Step 4: Simplify right side
    242,058.86x = 51,697,974,105.02
  5. Step 5: Solve for x
    x = 51,697,974,105.02/242,058.86
  6. Step 6: Final answer
    x = 213,576.05

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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.