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Finding the Fourth Proportional to 61,460.84, 84,637.50 and 53,390.82

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Solution

The fourth proportional to 61,460.84, 84,637.50 and 53,390.82 is: 73,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,460.84 : 84,637.50 = 53,390.82 : x
  2. Step 2: Convert to fraction form
    61,460.84/84,637.50 = 53,390.82/x
  3. Step 3: Cross multiply
    61,460.84x = 84,637.50 × 53,390.82
  4. Step 4: Simplify right side
    61,460.84x = 4,518,865,527.75
  5. Step 5: Solve for x
    x = 4,518,865,527.75/61,460.84
  6. Step 6: Final answer
    x = 73,524.30

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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.