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Finding the Fourth Proportional to 168,686.16, 232,787.12 and 97,064.76

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Solution

The fourth proportional to 168,686.16, 232,787.12 and 97,064.76 is: 133,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,686.16 : 232,787.12 = 97,064.76 : x
  2. Step 2: Convert to fraction form
    168,686.16/232,787.12 = 97,064.76/x
  3. Step 3: Cross multiply
    168,686.16x = 232,787.12 × 97,064.76
  4. Step 4: Simplify right side
    168,686.16x = 22,595,425,933.89
  5. Step 5: Solve for x
    x = 22,595,425,933.89/168,686.16
  6. Step 6: Final answer
    x = 133,949.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.