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Finding the Fourth Proportional to 217,376.19, 299,841.08 and 157,035.51

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Solution

The fourth proportional to 217,376.19, 299,841.08 and 157,035.51 is: 216,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,376.19 : 299,841.08 = 157,035.51 : x
  2. Step 2: Convert to fraction form
    217,376.19/299,841.08 = 157,035.51/x
  3. Step 3: Cross multiply
    217,376.19x = 299,841.08 × 157,035.51
  4. Step 4: Simplify right side
    217,376.19x = 47,085,696,131.57
  5. Step 5: Solve for x
    x = 47,085,696,131.57/217,376.19
  6. Step 6: Final answer
    x = 216,609.26

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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.