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Finding the Fourth Proportional to 101,566.40, 152,386.04 and 45,401.81

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Solution

The fourth proportional to 101,566.40, 152,386.04 and 45,401.81 is: 68,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,566.40 : 152,386.04 = 45,401.81 : x
  2. Step 2: Convert to fraction form
    101,566.40/152,386.04 = 45,401.81/x
  3. Step 3: Cross multiply
    101,566.40x = 152,386.04 × 45,401.81
  4. Step 4: Simplify right side
    101,566.40x = 6,918,601,386.31
  5. Step 5: Solve for x
    x = 6,918,601,386.31/101,566.40
  6. Step 6: Final answer
    x = 68,119.00

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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.