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Finding the Fourth Proportional to 140,603.10, 210,904.65 and 140,603.10

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Solution

The fourth proportional to 140,603.10, 210,904.65 and 140,603.10 is: 210,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,603.10 : 210,904.65 = 140,603.10 : x
  2. Step 2: Convert to fraction form
    140,603.10/210,904.65 = 140,603.10/x
  3. Step 3: Cross multiply
    140,603.10x = 210,904.65 × 140,603.10
  4. Step 4: Simplify right side
    140,603.10x = 29,653,847,594.42
  5. Step 5: Solve for x
    x = 29,653,847,594.42/140,603.10
  6. Step 6: Final answer
    x = 210,904.65

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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.