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Finding the Fourth Proportional to 67,875.93, 101,666.27 and 45,590.40

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Solution

The fourth proportional to 67,875.93, 101,666.27 and 45,590.40 is: 68,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,875.93 : 101,666.27 = 45,590.40 : x
  2. Step 2: Convert to fraction form
    67,875.93/101,666.27 = 45,590.40/x
  3. Step 3: Cross multiply
    67,875.93x = 101,666.27 × 45,590.40
  4. Step 4: Simplify right side
    67,875.93x = 4,635,006,029.78
  5. Step 5: Solve for x
    x = 4,635,006,029.78/67,875.93
  6. Step 6: Final answer
    x = 68,286.45

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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.