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Finding the Fourth Proportional to 104,807.40, 157,211.10 and 101,891.40

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Solution

The fourth proportional to 104,807.40, 157,211.10 and 101,891.40 is: 152,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,807.40 : 157,211.10 = 101,891.40 : x
  2. Step 2: Convert to fraction form
    104,807.40/157,211.10 = 101,891.40/x
  3. Step 3: Cross multiply
    104,807.40x = 157,211.10 × 101,891.40
  4. Step 4: Simplify right side
    104,807.40x = 16,018,459,074.54
  5. Step 5: Solve for x
    x = 16,018,459,074.54/104,807.40
  6. Step 6: Final answer
    x = 152,837.10

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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.