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Finding the Fourth Proportional to 65,363.58, 90,196.47 and 37,071.90

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Solution

The fourth proportional to 65,363.58, 90,196.47 and 37,071.90 is: 51,156.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,363.58 : 90,196.47 = 37,071.90 : x
  2. Step 2: Convert to fraction form
    65,363.58/90,196.47 = 37,071.90/x
  3. Step 3: Cross multiply
    65,363.58x = 90,196.47 × 37,071.90
  4. Step 4: Simplify right side
    65,363.58x = 3,343,754,516.19
  5. Step 5: Solve for x
    x = 3,343,754,516.19/65,363.58
  6. Step 6: Final answer
    x = 51,156.23

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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.