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Finding the Fourth Proportional to 86,796.29, 119,752.29 and 56,570.64

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Solution

The fourth proportional to 86,796.29, 119,752.29 and 56,570.64 is: 78,050.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,796.29 : 119,752.29 = 56,570.64 : x
  2. Step 2: Convert to fraction form
    86,796.29/119,752.29 = 56,570.64/x
  3. Step 3: Cross multiply
    86,796.29x = 119,752.29 × 56,570.64
  4. Step 4: Simplify right side
    86,796.29x = 6,774,463,686.77
  5. Step 5: Solve for x
    x = 6,774,463,686.77/86,796.29
  6. Step 6: Final answer
    x = 78,050.16

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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.