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Finding the Fourth Proportional to 245,587.70, 368,165.55 and 166,445.30

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Solution

The fourth proportional to 245,587.70, 368,165.55 and 166,445.30 is: 249,521.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,587.70 : 368,165.55 = 166,445.30 : x
  2. Step 2: Convert to fraction form
    245,587.70/368,165.55 = 166,445.30/x
  3. Step 3: Cross multiply
    245,587.70x = 368,165.55 × 166,445.30
  4. Step 4: Simplify right side
    245,587.70x = 61,279,425,419.42
  5. Step 5: Solve for x
    x = 61,279,425,419.42/245,587.70
  6. Step 6: Final answer
    x = 249,521.56

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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.