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Finding the Fourth Proportional to 577,153.37, 865,730.06 and 156,429.24

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Solution

The fourth proportional to 577,153.37, 865,730.06 and 156,429.24 is: 234,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,153.37 : 865,730.06 = 156,429.24 : x
  2. Step 2: Convert to fraction form
    577,153.37/865,730.06 = 156,429.24/x
  3. Step 3: Cross multiply
    577,153.37x = 865,730.06 × 156,429.24
  4. Step 4: Simplify right side
    577,153.37x = 135,425,494,548.81
  5. Step 5: Solve for x
    x = 135,425,494,548.81/577,153.37
  6. Step 6: Final answer
    x = 234,643.86

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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.