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Finding the Fourth Proportional to 115,124.40, 173,075.40 and 98,017.20

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Solution

The fourth proportional to 115,124.40, 173,075.40 and 98,017.20 is: 147,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,124.40 : 173,075.40 = 98,017.20 : x
  2. Step 2: Convert to fraction form
    115,124.40/173,075.40 = 98,017.20/x
  3. Step 3: Cross multiply
    115,124.40x = 173,075.40 × 98,017.20
  4. Step 4: Simplify right side
    115,124.40x = 16,964,366,096.88
  5. Step 5: Solve for x
    x = 16,964,366,096.88/115,124.40
  6. Step 6: Final answer
    x = 147,356.83

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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.