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Finding the Fourth Proportional to 45,266.40, 67,802.40 and 37,490.40

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Solution

The fourth proportional to 45,266.40, 67,802.40 and 37,490.40 is: 56,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,266.40 : 67,802.40 = 37,490.40 : x
  2. Step 2: Convert to fraction form
    45,266.40/67,802.40 = 37,490.40/x
  3. Step 3: Cross multiply
    45,266.40x = 67,802.40 × 37,490.40
  4. Step 4: Simplify right side
    45,266.40x = 2,541,939,096.96
  5. Step 5: Solve for x
    x = 2,541,939,096.96/45,266.40
  6. Step 6: Final answer
    x = 56,155.10

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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.