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Finding the Fourth Proportional to 344,124.40, 516,013.80 and 156,924.40

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Solution

The fourth proportional to 344,124.40, 516,013.80 and 156,924.40 is: 235,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,124.40 : 516,013.80 = 156,924.40 : x
  2. Step 2: Convert to fraction form
    344,124.40/516,013.80 = 156,924.40/x
  3. Step 3: Cross multiply
    344,124.40x = 516,013.80 × 156,924.40
  4. Step 4: Simplify right side
    344,124.40x = 80,975,155,956.72
  5. Step 5: Solve for x
    x = 80,975,155,956.72/344,124.40
  6. Step 6: Final answer
    x = 235,307.80

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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.