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Finding the Fourth Proportional to 64,913.40, 97,370.10 and 61,851.60

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Solution

The fourth proportional to 64,913.40, 97,370.10 and 61,851.60 is: 92,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,913.40 : 97,370.10 = 61,851.60 : x
  2. Step 2: Convert to fraction form
    64,913.40/97,370.10 = 61,851.60/x
  3. Step 3: Cross multiply
    64,913.40x = 97,370.10 × 61,851.60
  4. Step 4: Simplify right side
    64,913.40x = 6,022,496,477.16
  5. Step 5: Solve for x
    x = 6,022,496,477.16/64,913.40
  6. Step 6: Final answer
    x = 92,777.40

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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.