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Finding the Fourth Proportional to 96,710, 133,460.28 and 56,451.68

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Solution

The fourth proportional to 96,710, 133,460.28 and 56,451.68 is: 77,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,710 : 133,460.28 = 56,451.68 : x
  2. Step 2: Convert to fraction form
    96,710/133,460.28 = 56,451.68/x
  3. Step 3: Cross multiply
    96,710x = 133,460.28 × 56,451.68
  4. Step 4: Simplify right side
    96,710x = 7,534,057,019.27
  5. Step 5: Solve for x
    x = 7,534,057,019.27/96,710
  6. Step 6: Final answer
    x = 77,903.60

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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.