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Finding the Fourth Proportional to 155,178.92, 232,783.42 and 61,663.72

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Solution

The fourth proportional to 155,178.92, 232,783.42 and 61,663.72 is: 92,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,178.92 : 232,783.42 = 61,663.72 : x
  2. Step 2: Convert to fraction form
    155,178.92/232,783.42 = 61,663.72/x
  3. Step 3: Cross multiply
    155,178.92x = 232,783.42 × 61,663.72
  4. Step 4: Simplify right side
    155,178.92x = 14,354,291,631.52
  5. Step 5: Solve for x
    x = 14,354,291,631.52/155,178.92
  6. Step 6: Final answer
    x = 92,501.56

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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.