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Finding the Fourth Proportional to 334,430.35, 501,645.53 and 156,955.30

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Solution

The fourth proportional to 334,430.35, 501,645.53 and 156,955.30 is: 235,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,430.35 : 501,645.53 = 156,955.30 : x
  2. Step 2: Convert to fraction form
    334,430.35/501,645.53 = 156,955.30/x
  3. Step 3: Cross multiply
    334,430.35x = 501,645.53 × 156,955.30
  4. Step 4: Simplify right side
    334,430.35x = 78,735,924,654.81
  5. Step 5: Solve for x
    x = 78,735,924,654.81/334,430.35
  6. Step 6: Final answer
    x = 235,432.95

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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.