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Finding the Fourth Proportional to 110,118.60, 165,177.90 and 97,871.40

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Solution

The fourth proportional to 110,118.60, 165,177.90 and 97,871.40 is: 146,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,118.60 : 165,177.90 = 97,871.40 : x
  2. Step 2: Convert to fraction form
    110,118.60/165,177.90 = 97,871.40/x
  3. Step 3: Cross multiply
    110,118.60x = 165,177.90 × 97,871.40
  4. Step 4: Simplify right side
    110,118.60x = 16,166,192,322.06
  5. Step 5: Solve for x
    x = 16,166,192,322.06/110,118.60
  6. Step 6: Final answer
    x = 146,807.10

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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.