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Finding the Fourth Proportional to 340,501.62, 469,886.40 and 187,554.12

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Solution

The fourth proportional to 340,501.62, 469,886.40 and 187,554.12 is: 258,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,501.62 : 469,886.40 = 187,554.12 : x
  2. Step 2: Convert to fraction form
    340,501.62/469,886.40 = 187,554.12/x
  3. Step 3: Cross multiply
    340,501.62x = 469,886.40 × 187,554.12
  4. Step 4: Simplify right side
    340,501.62x = 88,129,130,251.97
  5. Step 5: Solve for x
    x = 88,129,130,251.97/340,501.62
  6. Step 6: Final answer
    x = 258,821.47

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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.