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Finding the Fourth Proportional to 119,127.12, 164,401.44 and 65,411.76

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Solution

The fourth proportional to 119,127.12, 164,401.44 and 65,411.76 is: 90,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,127.12 : 164,401.44 = 65,411.76 : x
  2. Step 2: Convert to fraction form
    119,127.12/164,401.44 = 65,411.76/x
  3. Step 3: Cross multiply
    119,127.12x = 164,401.44 × 65,411.76
  4. Step 4: Simplify right side
    119,127.12x = 10,753,787,536.93
  5. Step 5: Solve for x
    x = 10,753,787,536.93/119,127.12
  6. Step 6: Final answer
    x = 90,271.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.