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Finding the Fourth Proportional to 109,770, 151,483.68 and 59,470.08

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Solution

The fourth proportional to 109,770, 151,483.68 and 59,470.08 is: 82,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,770 : 151,483.68 = 59,470.08 : x
  2. Step 2: Convert to fraction form
    109,770/151,483.68 = 59,470.08/x
  3. Step 3: Cross multiply
    109,770x = 151,483.68 × 59,470.08
  4. Step 4: Simplify right side
    109,770x = 9,008,746,568.29
  5. Step 5: Solve for x
    x = 9,008,746,568.29/109,770
  6. Step 6: Final answer
    x = 82,069.30

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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.