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Finding the Fourth Proportional to 185,698.63, 256,269.99 and 105,124.69

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Solution

The fourth proportional to 185,698.63, 256,269.99 and 105,124.69 is: 145,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,698.63 : 256,269.99 = 105,124.69 : x
  2. Step 2: Convert to fraction form
    185,698.63/256,269.99 = 105,124.69/x
  3. Step 3: Cross multiply
    185,698.63x = 256,269.99 × 105,124.69
  4. Step 4: Simplify right side
    185,698.63x = 26,940,303,255.05
  5. Step 5: Solve for x
    x = 26,940,303,255.05/185,698.63
  6. Step 6: Final answer
    x = 145,075.40

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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.