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Finding the Fourth Proportional to 353,332.88, 529,931.70 and 137,191.61

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Solution

The fourth proportional to 353,332.88, 529,931.70 and 137,191.61 is: 205,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,332.88 : 529,931.70 = 137,191.61 : x
  2. Step 2: Convert to fraction form
    353,332.88/529,931.70 = 137,191.61/x
  3. Step 3: Cross multiply
    353,332.88x = 529,931.70 × 137,191.61
  4. Step 4: Simplify right side
    353,332.88x = 72,702,183,113.04
  5. Step 5: Solve for x
    x = 72,702,183,113.04/353,332.88
  6. Step 6: Final answer
    x = 205,761.16

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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.