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Finding the Fourth Proportional to 557,011.68, 835,522.08 and 157,665.60

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Solution

The fourth proportional to 557,011.68, 835,522.08 and 157,665.60 is: 236,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,011.68 : 835,522.08 = 157,665.60 : x
  2. Step 2: Convert to fraction form
    557,011.68/835,522.08 = 157,665.60/x
  3. Step 3: Cross multiply
    557,011.68x = 835,522.08 × 157,665.60
  4. Step 4: Simplify right side
    557,011.68x = 131,733,090,056.45
  5. Step 5: Solve for x
    x = 131,733,090,056.45/557,011.68
  6. Step 6: Final answer
    x = 236,499.69

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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.