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Finding the Fourth Proportional to 265,895.84, 366,937.40 and 145,039.76

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Solution

The fourth proportional to 265,895.84, 366,937.40 and 145,039.76 is: 200,155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,895.84 : 366,937.40 = 145,039.76 : x
  2. Step 2: Convert to fraction form
    265,895.84/366,937.40 = 145,039.76/x
  3. Step 3: Cross multiply
    265,895.84x = 366,937.40 × 145,039.76
  4. Step 4: Simplify right side
    265,895.84x = 53,220,512,431.02
  5. Step 5: Solve for x
    x = 53,220,512,431.02/265,895.84
  6. Step 6: Final answer
    x = 200,155.49

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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.