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Finding the Fourth Proportional to 185,838.80, 256,457.85 and 100,955.93

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Solution

The fourth proportional to 185,838.80, 256,457.85 and 100,955.93 is: 139,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,838.80 : 256,457.85 = 100,955.93 : x
  2. Step 2: Convert to fraction form
    185,838.80/256,457.85 = 100,955.93/x
  3. Step 3: Cross multiply
    185,838.80x = 256,457.85 × 100,955.93
  4. Step 4: Simplify right side
    185,838.80x = 25,890,940,752.55
  5. Step 5: Solve for x
    x = 25,890,940,752.55/185,838.80
  6. Step 6: Final answer
    x = 139,319.35

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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.