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Finding the Fourth Proportional to 188,641.20, 260,320.95 and 102,601.89

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Solution

The fourth proportional to 188,641.20, 260,320.95 and 102,601.89 is: 141,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,641.20 : 260,320.95 = 102,601.89 : x
  2. Step 2: Convert to fraction form
    188,641.20/260,320.95 = 102,601.89/x
  3. Step 3: Cross multiply
    188,641.20x = 260,320.95 × 102,601.89
  4. Step 4: Simplify right side
    188,641.20x = 26,709,421,476.60
  5. Step 5: Solve for x
    x = 26,709,421,476.60/188,641.20
  6. Step 6: Final answer
    x = 141,588.48

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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.