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Finding the Fourth Proportional to 185,153.52, 255,320.76 and 158,384.64

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Solution

The fourth proportional to 185,153.52, 255,320.76 and 158,384.64 is: 218,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,153.52 : 255,320.76 = 158,384.64 : x
  2. Step 2: Convert to fraction form
    185,153.52/255,320.76 = 158,384.64/x
  3. Step 3: Cross multiply
    185,153.52x = 255,320.76 × 158,384.64
  4. Step 4: Simplify right side
    185,153.52x = 40,438,886,657.13
  5. Step 5: Solve for x
    x = 40,438,886,657.13/185,153.52
  6. Step 6: Final answer
    x = 218,407.33

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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.