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Finding the Fourth Proportional to 64,886.20, 97,475.10 and 62,407.60

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Solution

The fourth proportional to 64,886.20, 97,475.10 and 62,407.60 is: 93,751.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,886.20 : 97,475.10 = 62,407.60 : x
  2. Step 2: Convert to fraction form
    64,886.20/97,475.10 = 62,407.60/x
  3. Step 3: Cross multiply
    64,886.20x = 97,475.10 × 62,407.60
  4. Step 4: Simplify right side
    64,886.20x = 6,083,187,050.76
  5. Step 5: Solve for x
    x = 6,083,187,050.76/64,886.20
  6. Step 6: Final answer
    x = 93,751.63

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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.