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Finding the Fourth Proportional to 185,792.16, 256,388.95 and 100,907.40

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Solution

The fourth proportional to 185,792.16, 256,388.95 and 100,907.40 is: 139,249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,792.16 : 256,388.95 = 100,907.40 : x
  2. Step 2: Convert to fraction form
    185,792.16/256,388.95 = 100,907.40/x
  3. Step 3: Cross multiply
    185,792.16x = 256,388.95 × 100,907.40
  4. Step 4: Simplify right side
    185,792.16x = 25,871,542,333.23
  5. Step 5: Solve for x
    x = 25,871,542,333.23/185,792.16
  6. Step 6: Final answer
    x = 139,249.91

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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.