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Finding the Fourth Proportional to 354,827.40, 532,125.90 and 118,129.80

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Solution

The fourth proportional to 354,827.40, 532,125.90 and 118,129.80 is: 177,156.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,827.40 : 532,125.90 = 118,129.80 : x
  2. Step 2: Convert to fraction form
    354,827.40/532,125.90 = 118,129.80/x
  3. Step 3: Cross multiply
    354,827.40x = 532,125.90 × 118,129.80
  4. Step 4: Simplify right side
    354,827.40x = 62,859,926,141.82
  5. Step 5: Solve for x
    x = 62,859,926,141.82/354,827.40
  6. Step 6: Final answer
    x = 177,156.35

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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.