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Finding the Fourth Proportional to 186,539.08, 257,498.58 and 111,073

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Solution

The fourth proportional to 186,539.08, 257,498.58 and 111,073 is: 153,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,539.08 : 257,498.58 = 111,073 : x
  2. Step 2: Convert to fraction form
    186,539.08/257,498.58 = 111,073/x
  3. Step 3: Cross multiply
    186,539.08x = 257,498.58 × 111,073
  4. Step 4: Simplify right side
    186,539.08x = 28,601,139,776.34
  5. Step 5: Solve for x
    x = 28,601,139,776.34/186,539.08
  6. Step 6: Final answer
    x = 153,325.19

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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.