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Finding the Fourth Proportional to 110,688.40, 166,032.60 and 63,886.60

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Solution

The fourth proportional to 110,688.40, 166,032.60 and 63,886.60 is: 95,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,688.40 : 166,032.60 = 63,886.60 : x
  2. Step 2: Convert to fraction form
    110,688.40/166,032.60 = 63,886.60/x
  3. Step 3: Cross multiply
    110,688.40x = 166,032.60 × 63,886.60
  4. Step 4: Simplify right side
    110,688.40x = 10,607,258,303.16
  5. Step 5: Solve for x
    x = 10,607,258,303.16/110,688.40
  6. Step 6: Final answer
    x = 95,829.90

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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.