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Finding the Fourth Proportional to 183,636.63, 253,519.10 and 128,530.77

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Solution

The fourth proportional to 183,636.63, 253,519.10 and 128,530.77 is: 177,442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,636.63 : 253,519.10 = 128,530.77 : x
  2. Step 2: Convert to fraction form
    183,636.63/253,519.10 = 128,530.77/x
  3. Step 3: Cross multiply
    183,636.63x = 253,519.10 × 128,530.77
  4. Step 4: Simplify right side
    183,636.63x = 32,585,005,132.71
  5. Step 5: Solve for x
    x = 32,585,005,132.71/183,636.63
  6. Step 6: Final answer
    x = 177,442.84

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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.