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Finding the Fourth Proportional to 185,889.52, 256,528.40 and 105,332.76

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Solution

The fourth proportional to 185,889.52, 256,528.40 and 105,332.76 is: 145,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,889.52 : 256,528.40 = 105,332.76 : x
  2. Step 2: Convert to fraction form
    185,889.52/256,528.40 = 105,332.76/x
  3. Step 3: Cross multiply
    185,889.52x = 256,528.40 × 105,332.76
  4. Step 4: Simplify right side
    185,889.52x = 27,020,844,390.38
  5. Step 5: Solve for x
    x = 27,020,844,390.38/185,889.52
  6. Step 6: Final answer
    x = 145,359.70

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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.