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Finding the Fourth Proportional to 173,547.48, 260,321.22 and 90,603.48

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Solution

The fourth proportional to 173,547.48, 260,321.22 and 90,603.48 is: 135,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,547.48 : 260,321.22 = 90,603.48 : x
  2. Step 2: Convert to fraction form
    173,547.48/260,321.22 = 90,603.48/x
  3. Step 3: Cross multiply
    173,547.48x = 260,321.22 × 90,603.48
  4. Step 4: Simplify right side
    173,547.48x = 23,586,008,449.85
  5. Step 5: Solve for x
    x = 23,586,008,449.85/173,547.48
  6. Step 6: Final answer
    x = 135,905.22

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1.5x scale

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.