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Finding the Fourth Proportional to 83,956.64, 115,868.34 and 62,699.00

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Solution

The fourth proportional to 83,956.64, 115,868.34 and 62,699.00 is: 86,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,956.64 : 115,868.34 = 62,699.00 : x
  2. Step 2: Convert to fraction form
    83,956.64/115,868.34 = 62,699.00/x
  3. Step 3: Cross multiply
    83,956.64x = 115,868.34 × 62,699.00
  4. Step 4: Simplify right side
    83,956.64x = 7,264,828,470.32
  5. Step 5: Solve for x
    x = 7,264,828,470.32/83,956.64
  6. Step 6: Final answer
    x = 86,530.72

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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.