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Finding the Fourth Proportional to 185,792.38, 256,393.29 and 100,909.51

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Solution

The fourth proportional to 185,792.38, 256,393.29 and 100,909.51 is: 139,255.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,792.38 : 256,393.29 = 100,909.51 : x
  2. Step 2: Convert to fraction form
    185,792.38/256,393.29 = 100,909.51/x
  3. Step 3: Cross multiply
    185,792.38x = 256,393.29 × 100,909.51
  4. Step 4: Simplify right side
    185,792.38x = 25,872,521,261.19
  5. Step 5: Solve for x
    x = 25,872,521,261.19/185,792.38
  6. Step 6: Final answer
    x = 139,255.02

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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.