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Finding the Fourth Proportional to 209,616.66, 289,276.92 and 114,124.95

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Solution

The fourth proportional to 209,616.66, 289,276.92 and 114,124.95 is: 157,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,616.66 : 289,276.92 = 114,124.95 : x
  2. Step 2: Convert to fraction form
    209,616.66/289,276.92 = 114,124.95/x
  3. Step 3: Cross multiply
    209,616.66x = 289,276.92 × 114,124.95
  4. Step 4: Simplify right side
    209,616.66x = 33,013,714,031.15
  5. Step 5: Solve for x
    x = 33,013,714,031.15/209,616.66
  6. Step 6: Final answer
    x = 157,495.66

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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.