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Finding the Fourth Proportional to 384,941.70, 577,412.55 and 104,458.95

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Solution

The fourth proportional to 384,941.70, 577,412.55 and 104,458.95 is: 156,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,941.70 : 577,412.55 = 104,458.95 : x
  2. Step 2: Convert to fraction form
    384,941.70/577,412.55 = 104,458.95/x
  3. Step 3: Cross multiply
    384,941.70x = 577,412.55 × 104,458.95
  4. Step 4: Simplify right side
    384,941.70x = 60,315,908,689.82
  5. Step 5: Solve for x
    x = 60,315,908,689.82/384,941.70
  6. Step 6: Final answer
    x = 156,688.43

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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.