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Finding the Fourth Proportional to 356,881.72, 535,153.14 and 207,167.92

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Solution

The fourth proportional to 356,881.72, 535,153.14 and 207,167.92 is: 310,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,881.72 : 535,153.14 = 207,167.92 : x
  2. Step 2: Convert to fraction form
    356,881.72/535,153.14 = 207,167.92/x
  3. Step 3: Cross multiply
    356,881.72x = 535,153.14 × 207,167.92
  4. Step 4: Simplify right side
    356,881.72x = 110,866,562,895.27
  5. Step 5: Solve for x
    x = 110,866,562,895.27/356,881.72
  6. Step 6: Final answer
    x = 310,653.52

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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.