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Finding the Fourth Proportional to 45,303.80, 67,955.70 and 43,116.80

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Solution

The fourth proportional to 45,303.80, 67,955.70 and 43,116.80 is: 64,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,303.80 : 67,955.70 = 43,116.80 : x
  2. Step 2: Convert to fraction form
    45,303.80/67,955.70 = 43,116.80/x
  3. Step 3: Cross multiply
    45,303.80x = 67,955.70 × 43,116.80
  4. Step 4: Simplify right side
    45,303.80x = 2,930,032,325.76
  5. Step 5: Solve for x
    x = 2,930,032,325.76/45,303.80
  6. Step 6: Final answer
    x = 64,675.20

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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.