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Finding the Fourth Proportional to 130,226.67, 179,747.90 and 76,547.67

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Solution

The fourth proportional to 130,226.67, 179,747.90 and 76,547.67 is: 105,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,226.67 : 179,747.90 = 76,547.67 : x
  2. Step 2: Convert to fraction form
    130,226.67/179,747.90 = 76,547.67/x
  3. Step 3: Cross multiply
    130,226.67x = 179,747.90 × 76,547.67
  4. Step 4: Simplify right side
    130,226.67x = 13,759,282,549.65
  5. Step 5: Solve for x
    x = 13,759,282,549.65/130,226.67
  6. Step 6: Final answer
    x = 105,656.41

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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.