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Finding the Fourth Proportional to 441,113.01, 661,606.95 and 141,554.82

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Solution

The fourth proportional to 441,113.01, 661,606.95 and 141,554.82 is: 212,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,113.01 : 661,606.95 = 141,554.82 : x
  2. Step 2: Convert to fraction form
    441,113.01/661,606.95 = 141,554.82/x
  3. Step 3: Cross multiply
    441,113.01x = 661,606.95 × 141,554.82
  4. Step 4: Simplify right side
    441,113.01x = 93,653,655,729.86
  5. Step 5: Solve for x
    x = 93,653,655,729.86/441,113.01
  6. Step 6: Final answer
    x = 212,312.16

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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.