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Finding the Fourth Proportional to 185,368.46, 255,810.30 and 100,485.32

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Solution

The fourth proportional to 185,368.46, 255,810.30 and 100,485.32 is: 138,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,368.46 : 255,810.30 = 100,485.32 : x
  2. Step 2: Convert to fraction form
    185,368.46/255,810.30 = 100,485.32/x
  3. Step 3: Cross multiply
    185,368.46x = 255,810.30 × 100,485.32
  4. Step 4: Simplify right side
    185,368.46x = 25,705,179,854.80
  5. Step 5: Solve for x
    x = 25,705,179,854.80/185,368.46
  6. Step 6: Final answer
    x = 138,670.73

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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.