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Finding the Fourth Proportional to 115,574.40, 173,750.40 and 98,467.20

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Solution

The fourth proportional to 115,574.40, 173,750.40 and 98,467.20 is: 148,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,574.40 : 173,750.40 = 98,467.20 : x
  2. Step 2: Convert to fraction form
    115,574.40/173,750.40 = 98,467.20/x
  3. Step 3: Cross multiply
    115,574.40x = 173,750.40 × 98,467.20
  4. Step 4: Simplify right side
    115,574.40x = 17,108,715,386.88
  5. Step 5: Solve for x
    x = 17,108,715,386.88/115,574.40
  6. Step 6: Final answer
    x = 148,032.05

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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.