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Finding the Fourth Proportional to 68,465.86, 94,453.70 and 42,954.91

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Solution

The fourth proportional to 68,465.86, 94,453.70 and 42,954.91 is: 59,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,465.86 : 94,453.70 = 42,954.91 : x
  2. Step 2: Convert to fraction form
    68,465.86/94,453.70 = 42,954.91/x
  3. Step 3: Cross multiply
    68,465.86x = 94,453.70 × 42,954.91
  4. Step 4: Simplify right side
    68,465.86x = 4,057,249,731.76
  5. Step 5: Solve for x
    x = 4,057,249,731.76/68,465.86
  6. Step 6: Final answer
    x = 59,259.46

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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.