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Finding the Fourth Proportional to 153,356.52, 211,641.68 and 92,932.46

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Solution

The fourth proportional to 153,356.52, 211,641.68 and 92,932.46 is: 128,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,356.52 : 211,641.68 = 92,932.46 : x
  2. Step 2: Convert to fraction form
    153,356.52/211,641.68 = 92,932.46/x
  3. Step 3: Cross multiply
    153,356.52x = 211,641.68 × 92,932.46
  4. Step 4: Simplify right side
    153,356.52x = 19,668,381,960.93
  5. Step 5: Solve for x
    x = 19,668,381,960.93/153,356.52
  6. Step 6: Final answer
    x = 128,252.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.