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Finding the Fourth Proportional to 112,953.84, 169,327.08 and 39,030

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Solution

The fourth proportional to 112,953.84, 169,327.08 and 39,030 is: 58,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,953.84 : 169,327.08 = 39,030 : x
  2. Step 2: Convert to fraction form
    112,953.84/169,327.08 = 39,030/x
  3. Step 3: Cross multiply
    112,953.84x = 169,327.08 × 39,030
  4. Step 4: Simplify right side
    112,953.84x = 6,608,835,932.40
  5. Step 5: Solve for x
    x = 6,608,835,932.40/112,953.84
  6. Step 6: Final answer
    x = 58,509.17

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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.