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Finding the Fourth Proportional to 152,992.40, 211,061.70 and 101,955.42

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Solution

The fourth proportional to 152,992.40, 211,061.70 and 101,955.42 is: 140,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,992.40 : 211,061.70 = 101,955.42 : x
  2. Step 2: Convert to fraction form
    152,992.40/211,061.70 = 101,955.42/x
  3. Step 3: Cross multiply
    152,992.40x = 211,061.70 × 101,955.42
  4. Step 4: Simplify right side
    152,992.40x = 21,518,884,269.41
  5. Step 5: Solve for x
    x = 21,518,884,269.41/152,992.40
  6. Step 6: Final answer
    x = 140,653.29

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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.