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Finding the Fourth Proportional to 118,303.71, 163,277.85 and 75,238.30

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Solution

The fourth proportional to 118,303.71, 163,277.85 and 75,238.30 is: 103,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,303.71 : 163,277.85 = 75,238.30 : x
  2. Step 2: Convert to fraction form
    118,303.71/163,277.85 = 75,238.30/x
  3. Step 3: Cross multiply
    118,303.71x = 163,277.85 × 75,238.30
  4. Step 4: Simplify right side
    118,303.71x = 12,284,747,429.46
  5. Step 5: Solve for x
    x = 12,284,747,429.46/118,303.71
  6. Step 6: Final answer
    x = 103,840.77

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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.