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Finding the Fourth Proportional to 157,618.16, 217,511.16 and 90,550.16

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Solution

The fourth proportional to 157,618.16, 217,511.16 and 90,550.16 is: 124,958.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,618.16 : 217,511.16 = 90,550.16 : x
  2. Step 2: Convert to fraction form
    157,618.16/217,511.16 = 90,550.16/x
  3. Step 3: Cross multiply
    157,618.16x = 217,511.16 × 90,550.16
  4. Step 4: Simplify right side
    157,618.16x = 19,695,670,339.79
  5. Step 5: Solve for x
    x = 19,695,670,339.79/157,618.16
  6. Step 6: Final answer
    x = 124,958.13

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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.