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Finding the Fourth Proportional to 86,253.84, 119,029.08 and 48,528

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Solution

The fourth proportional to 86,253.84, 119,029.08 and 48,528 is: 66,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,253.84 : 119,029.08 = 48,528 : x
  2. Step 2: Convert to fraction form
    86,253.84/119,029.08 = 48,528/x
  3. Step 3: Cross multiply
    86,253.84x = 119,029.08 × 48,528
  4. Step 4: Simplify right side
    86,253.84x = 5,776,243,194.24
  5. Step 5: Solve for x
    x = 5,776,243,194.24/86,253.84
  6. Step 6: Final answer
    x = 66,967.95

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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.