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Finding the Fourth Proportional to 134,432.80, 201,649.20 and 40,926.40

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Solution

The fourth proportional to 134,432.80, 201,649.20 and 40,926.40 is: 61,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,432.80 : 201,649.20 = 40,926.40 : x
  2. Step 2: Convert to fraction form
    134,432.80/201,649.20 = 40,926.40/x
  3. Step 3: Cross multiply
    134,432.80x = 201,649.20 × 40,926.40
  4. Step 4: Simplify right side
    134,432.80x = 8,252,775,818.88
  5. Step 5: Solve for x
    x = 8,252,775,818.88/134,432.80
  6. Step 6: Final answer
    x = 61,389.60

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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.