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Finding the Fourth Proportional to 354,815.20, 532,307.85 and 118,159.93

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Solution

The fourth proportional to 354,815.20, 532,307.85 and 118,159.93 is: 177,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,815.20 : 532,307.85 = 118,159.93 : x
  2. Step 2: Convert to fraction form
    354,815.20/532,307.85 = 118,159.93/x
  3. Step 3: Cross multiply
    354,815.20x = 532,307.85 × 118,159.93
  4. Step 4: Simplify right side
    354,815.20x = 62,897,458,294.45
  5. Step 5: Solve for x
    x = 62,897,458,294.45/354,815.20
  6. Step 6: Final answer
    x = 177,268.22

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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.