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Finding the Fourth Proportional to 153,891.84, 212,365.15 and 96,562.07

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Solution

The fourth proportional to 153,891.84, 212,365.15 and 96,562.07 is: 133,252.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,891.84 : 212,365.15 = 96,562.07 : x
  2. Step 2: Convert to fraction form
    153,891.84/212,365.15 = 96,562.07/x
  3. Step 3: Cross multiply
    153,891.84x = 212,365.15 × 96,562.07
  4. Step 4: Simplify right side
    153,891.84x = 20,506,418,479.86
  5. Step 5: Solve for x
    x = 20,506,418,479.86/153,891.84
  6. Step 6: Final answer
    x = 133,252.15

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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.