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Finding the Fourth Proportional to 173,145.90, 259,718.85 and 98,237.10

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Solution

The fourth proportional to 173,145.90, 259,718.85 and 98,237.10 is: 147,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,145.90 : 259,718.85 = 98,237.10 : x
  2. Step 2: Convert to fraction form
    173,145.90/259,718.85 = 98,237.10/x
  3. Step 3: Cross multiply
    173,145.90x = 259,718.85 × 98,237.10
  4. Step 4: Simplify right side
    173,145.90x = 25,514,026,639.34
  5. Step 5: Solve for x
    x = 25,514,026,639.34/173,145.90
  6. Step 6: Final answer
    x = 147,355.65

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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.