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Finding the Fourth Proportional to 61,702.64, 85,148.64 and 33,407.72

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Solution

The fourth proportional to 61,702.64, 85,148.64 and 33,407.72 is: 46,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,702.64 : 85,148.64 = 33,407.72 : x
  2. Step 2: Convert to fraction form
    61,702.64/85,148.64 = 33,407.72/x
  3. Step 3: Cross multiply
    61,702.64x = 85,148.64 × 33,407.72
  4. Step 4: Simplify right side
    61,702.64x = 2,844,621,923.50
  5. Step 5: Solve for x
    x = 2,844,621,923.50/61,702.64
  6. Step 6: Final answer
    x = 46,102.11

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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.