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Finding the Fourth Proportional to 77,492.88, 106,991.52 and 59,554.80

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Solution

The fourth proportional to 77,492.88, 106,991.52 and 59,554.80 is: 82,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,492.88 : 106,991.52 = 59,554.80 : x
  2. Step 2: Convert to fraction form
    77,492.88/106,991.52 = 59,554.80/x
  3. Step 3: Cross multiply
    77,492.88x = 106,991.52 × 59,554.80
  4. Step 4: Simplify right side
    77,492.88x = 6,371,858,575.30
  5. Step 5: Solve for x
    x = 6,371,858,575.30/77,492.88
  6. Step 6: Final answer
    x = 82,225.08

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1.5x scale

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.