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Finding the Fourth Proportional to 155,151.17, 232,509.78 and 83,919.98

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Solution

The fourth proportional to 155,151.17, 232,509.78 and 83,919.98 is: 125,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,151.17 : 232,509.78 = 83,919.98 : x
  2. Step 2: Convert to fraction form
    155,151.17/232,509.78 = 83,919.98/x
  3. Step 3: Cross multiply
    155,151.17x = 232,509.78 × 83,919.98
  4. Step 4: Simplify right side
    155,151.17x = 19,512,214,924.86
  5. Step 5: Solve for x
    x = 19,512,214,924.86/155,151.17
  6. Step 6: Final answer
    x = 125,762.60

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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.