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Finding the Fourth Proportional to 155,422.32, 232,957.08 and 136,666.08

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Solution

The fourth proportional to 155,422.32, 232,957.08 and 136,666.08 is: 204,844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,422.32 : 232,957.08 = 136,666.08 : x
  2. Step 2: Convert to fraction form
    155,422.32/232,957.08 = 136,666.08/x
  3. Step 3: Cross multiply
    155,422.32x = 232,957.08 × 136,666.08
  4. Step 4: Simplify right side
    155,422.32x = 31,837,330,931.85
  5. Step 5: Solve for x
    x = 31,837,330,931.85/155,422.32
  6. Step 6: Final answer
    x = 204,844.01

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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.