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Finding the Fourth Proportional to 173,681.70, 260,522.55 and 84,992.10

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Solution

The fourth proportional to 173,681.70, 260,522.55 and 84,992.10 is: 127,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,681.70 : 260,522.55 = 84,992.10 : x
  2. Step 2: Convert to fraction form
    173,681.70/260,522.55 = 84,992.10/x
  3. Step 3: Cross multiply
    173,681.70x = 260,522.55 × 84,992.10
  4. Step 4: Simplify right side
    173,681.70x = 22,142,358,621.86
  5. Step 5: Solve for x
    x = 22,142,358,621.86/173,681.70
  6. Step 6: Final answer
    x = 127,488.15

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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.