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Finding the Fourth Proportional to 144,023.45, 215,966.15 and 68,058.76

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Solution

The fourth proportional to 144,023.45, 215,966.15 and 68,058.76 is: 102,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,023.45 : 215,966.15 = 68,058.76 : x
  2. Step 2: Convert to fraction form
    144,023.45/215,966.15 = 68,058.76/x
  3. Step 3: Cross multiply
    144,023.45x = 215,966.15 × 68,058.76
  4. Step 4: Simplify right side
    144,023.45x = 14,698,387,745.99
  5. Step 5: Solve for x
    x = 14,698,387,745.99/144,023.45
  6. Step 6: Final answer
    x = 102,055.52

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1.5x scale

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.