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Finding the Fourth Proportional to 61,148.40, 84,384.77 and 35,655.89

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Solution

The fourth proportional to 61,148.40, 84,384.77 and 35,655.89 is: 49,205.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,148.40 : 84,384.77 = 35,655.89 : x
  2. Step 2: Convert to fraction form
    61,148.40/84,384.77 = 35,655.89/x
  3. Step 3: Cross multiply
    61,148.40x = 84,384.77 × 35,655.89
  4. Step 4: Simplify right side
    61,148.40x = 3,008,813,476.59
  5. Step 5: Solve for x
    x = 3,008,813,476.59/61,148.40
  6. Step 6: Final answer
    x = 49,205.11

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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.