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Finding the Fourth Proportional to 173,345.70, 260,018.55 and 84,656.10

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Solution

The fourth proportional to 173,345.70, 260,018.55 and 84,656.10 is: 126,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,345.70 : 260,018.55 = 84,656.10 : x
  2. Step 2: Convert to fraction form
    173,345.70/260,018.55 = 84,656.10/x
  3. Step 3: Cross multiply
    173,345.70x = 260,018.55 × 84,656.10
  4. Step 4: Simplify right side
    173,345.70x = 22,012,156,370.66
  5. Step 5: Solve for x
    x = 22,012,156,370.66/173,345.70
  6. Step 6: Final answer
    x = 126,984.15

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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.