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Finding the Fourth Proportional to 70,605.91, 97,411.79 and 45,127.19

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Solution

The fourth proportional to 70,605.91, 97,411.79 and 45,127.19 is: 62,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.91 : 97,411.79 = 45,127.19 : x
  2. Step 2: Convert to fraction form
    70,605.91/97,411.79 = 45,127.19/x
  3. Step 3: Cross multiply
    70,605.91x = 97,411.79 × 45,127.19
  4. Step 4: Simplify right side
    70,605.91x = 4,395,920,355.57
  5. Step 5: Solve for x
    x = 4,395,920,355.57/70,605.91
  6. Step 6: Final answer
    x = 62,259.95

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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.