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Finding the Fourth Proportional to 64,989.76, 97,478.99 and 46,095.61

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Solution

The fourth proportional to 64,989.76, 97,478.99 and 46,095.61 is: 69,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,989.76 : 97,478.99 = 46,095.61 : x
  2. Step 2: Convert to fraction form
    64,989.76/97,478.99 = 46,095.61/x
  3. Step 3: Cross multiply
    64,989.76x = 97,478.99 × 46,095.61
  4. Step 4: Simplify right side
    64,989.76x = 4,493,353,506.23
  5. Step 5: Solve for x
    x = 4,493,353,506.23/64,989.76
  6. Step 6: Final answer
    x = 69,139.41

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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.