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Finding the Fourth Proportional to 186,595.35, 257,420.50 and 118,575.91

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Solution

The fourth proportional to 186,595.35, 257,420.50 and 118,575.91 is: 163,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,595.35 : 257,420.50 = 118,575.91 : x
  2. Step 2: Convert to fraction form
    186,595.35/257,420.50 = 118,575.91/x
  3. Step 3: Cross multiply
    186,595.35x = 257,420.50 × 118,575.91
  4. Step 4: Simplify right side
    186,595.35x = 30,523,868,778.39
  5. Step 5: Solve for x
    x = 30,523,868,778.39/186,595.35
  6. Step 6: Final answer
    x = 163,583.22

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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.