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Finding the Fourth Proportional to 102,554.40, 153,896.40 and 60,434.40

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Solution

The fourth proportional to 102,554.40, 153,896.40 and 60,434.40 is: 90,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,554.40 : 153,896.40 = 60,434.40 : x
  2. Step 2: Convert to fraction form
    102,554.40/153,896.40 = 60,434.40/x
  3. Step 3: Cross multiply
    102,554.40x = 153,896.40 × 60,434.40
  4. Step 4: Simplify right side
    102,554.40x = 9,300,636,596.16
  5. Step 5: Solve for x
    x = 9,300,636,596.16/102,554.40
  6. Step 6: Final answer
    x = 90,689.79

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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.