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Finding the Fourth Proportional to 265,603.72, 366,519 and 152,419

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Solution

The fourth proportional to 265,603.72, 366,519 and 152,419 is: 210,330.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,603.72 : 366,519 = 152,419 : x
  2. Step 2: Convert to fraction form
    265,603.72/366,519 = 152,419/x
  3. Step 3: Cross multiply
    265,603.72x = 366,519 × 152,419
  4. Step 4: Simplify right side
    265,603.72x = 55,864,459,461
  5. Step 5: Solve for x
    x = 55,864,459,461/265,603.72
  6. Step 6: Final answer
    x = 210,330.11

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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.