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Finding the Fourth Proportional to 169,840.48, 254,829.84 and 76,390.24

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Solution

The fourth proportional to 169,840.48, 254,829.84 and 76,390.24 is: 114,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,840.48 : 254,829.84 = 76,390.24 : x
  2. Step 2: Convert to fraction form
    169,840.48/254,829.84 = 76,390.24/x
  3. Step 3: Cross multiply
    169,840.48x = 254,829.84 × 76,390.24
  4. Step 4: Simplify right side
    169,840.48x = 19,466,512,636.76
  5. Step 5: Solve for x
    x = 19,466,512,636.76/169,840.48
  6. Step 6: Final answer
    x = 114,616.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.