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Finding the Fourth Proportional to 170,424.84, 255,547.73 and 75,613.95

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Solution

The fourth proportional to 170,424.84, 255,547.73 and 75,613.95 is: 113,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,424.84 : 255,547.73 = 75,613.95 : x
  2. Step 2: Convert to fraction form
    170,424.84/255,547.73 = 75,613.95/x
  3. Step 3: Cross multiply
    170,424.84x = 255,547.73 × 75,613.95
  4. Step 4: Simplify right side
    170,424.84x = 19,322,972,900.76
  5. Step 5: Solve for x
    x = 19,322,972,900.76/170,424.84
  6. Step 6: Final answer
    x = 113,381.20

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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.