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Finding the Fourth Proportional to 66,374.40, 99,561.60 and 59,116.80

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Solution

The fourth proportional to 66,374.40, 99,561.60 and 59,116.80 is: 88,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,374.40 : 99,561.60 = 59,116.80 : x
  2. Step 2: Convert to fraction form
    66,374.40/99,561.60 = 59,116.80/x
  3. Step 3: Cross multiply
    66,374.40x = 99,561.60 × 59,116.80
  4. Step 4: Simplify right side
    66,374.40x = 5,885,763,194.88
  5. Step 5: Solve for x
    x = 5,885,763,194.88/66,374.40
  6. Step 6: Final answer
    x = 88,675.20

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1.5x scale

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.