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Finding the Fourth Proportional to 255,606.77, 352,763.58 and 153,665.23

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Solution

The fourth proportional to 255,606.77, 352,763.58 and 153,665.23 is: 212,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,606.77 : 352,763.58 = 153,665.23 : x
  2. Step 2: Convert to fraction form
    255,606.77/352,763.58 = 153,665.23/x
  3. Step 3: Cross multiply
    255,606.77x = 352,763.58 × 153,665.23
  4. Step 4: Simplify right side
    255,606.77x = 54,207,494,892.51
  5. Step 5: Solve for x
    x = 54,207,494,892.51/255,606.77
  6. Step 6: Final answer
    x = 212,073.79

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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.