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Finding the Fourth Proportional to 65,255.40, 97,810.20 and 37,188.90

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Solution

The fourth proportional to 65,255.40, 97,810.20 and 37,188.90 is: 55,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,255.40 : 97,810.20 = 37,188.90 : x
  2. Step 2: Convert to fraction form
    65,255.40/97,810.20 = 37,188.90/x
  3. Step 3: Cross multiply
    65,255.40x = 97,810.20 × 37,188.90
  4. Step 4: Simplify right side
    65,255.40x = 3,637,453,746.78
  5. Step 5: Solve for x
    x = 3,637,453,746.78/65,255.40
  6. Step 6: Final answer
    x = 55,741.80

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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.