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Finding the Fourth Proportional to 385,059.51, 577,666.30 and 118,810.04

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Solution

The fourth proportional to 385,059.51, 577,666.30 and 118,810.04 is: 178,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,059.51 : 577,666.30 = 118,810.04 : x
  2. Step 2: Convert to fraction form
    385,059.51/577,666.30 = 118,810.04/x
  3. Step 3: Cross multiply
    385,059.51x = 577,666.30 × 118,810.04
  4. Step 4: Simplify right side
    385,059.51x = 68,632,553,024.30
  5. Step 5: Solve for x
    x = 68,632,553,024.30/385,059.51
  6. Step 6: Final answer
    x = 178,238.82

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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.