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Finding the Fourth Proportional to 111,303.65, 166,818.35 and 63,312.50

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Solution

The fourth proportional to 111,303.65, 166,818.35 and 63,312.50 is: 94,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,303.65 : 166,818.35 = 63,312.50 : x
  2. Step 2: Convert to fraction form
    111,303.65/166,818.35 = 63,312.50/x
  3. Step 3: Cross multiply
    111,303.65x = 166,818.35 × 63,312.50
  4. Step 4: Simplify right side
    111,303.65x = 10,561,687,359.70
  5. Step 5: Solve for x
    x = 10,561,687,359.70/111,303.65
  6. Step 6: Final answer
    x = 94,890.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.