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Finding the Fourth Proportional to 102,564.40, 153,911.40 and 60,444.40

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Solution

The fourth proportional to 102,564.40, 153,911.40 and 60,444.40 is: 90,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,564.40 : 153,911.40 = 60,444.40 : x
  2. Step 2: Convert to fraction form
    102,564.40/153,911.40 = 60,444.40/x
  3. Step 3: Cross multiply
    102,564.40x = 153,911.40 × 60,444.40
  4. Step 4: Simplify right side
    102,564.40x = 9,303,082,226.16
  5. Step 5: Solve for x
    x = 9,303,082,226.16/102,564.40
  6. Step 6: Final answer
    x = 90,704.79

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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.