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Finding the Fourth Proportional to 172,010.87, 237,409.94 and 99,416.85

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Solution

The fourth proportional to 172,010.87, 237,409.94 and 99,416.85 is: 137,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,010.87 : 237,409.94 = 99,416.85 : x
  2. Step 2: Convert to fraction form
    172,010.87/237,409.94 = 99,416.85/x
  3. Step 3: Cross multiply
    172,010.87x = 237,409.94 × 99,416.85
  4. Step 4: Simplify right side
    172,010.87x = 23,602,547,896.40
  5. Step 5: Solve for x
    x = 23,602,547,896.40/172,010.87
  6. Step 6: Final answer
    x = 137,215.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.