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Finding the Fourth Proportional to 65,223.70, 97,835.55 and 42,673.30

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Solution

The fourth proportional to 65,223.70, 97,835.55 and 42,673.30 is: 64,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,223.70 : 97,835.55 = 42,673.30 : x
  2. Step 2: Convert to fraction form
    65,223.70/97,835.55 = 42,673.30/x
  3. Step 3: Cross multiply
    65,223.70x = 97,835.55 × 42,673.30
  4. Step 4: Simplify right side
    65,223.70x = 4,174,965,775.82
  5. Step 5: Solve for x
    x = 4,174,965,775.82/65,223.70
  6. Step 6: Final answer
    x = 64,009.95

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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.