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Finding the Fourth Proportional to 255,611.69, 352,746.59 and 140,894.76

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Solution

The fourth proportional to 255,611.69, 352,746.59 and 140,894.76 is: 194,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,611.69 : 352,746.59 = 140,894.76 : x
  2. Step 2: Convert to fraction form
    255,611.69/352,746.59 = 140,894.76/x
  3. Step 3: Cross multiply
    255,611.69x = 352,746.59 × 140,894.76
  4. Step 4: Simplify right side
    255,611.69x = 49,700,146,138.87
  5. Step 5: Solve for x
    x = 49,700,146,138.87/255,611.69
  6. Step 6: Final answer
    x = 194,436.12

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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.