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Finding the Fourth Proportional to 148,498.58, 204,909.35 and 84,840.48

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Solution

The fourth proportional to 148,498.58, 204,909.35 and 84,840.48 is: 117,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,498.58 : 204,909.35 = 84,840.48 : x
  2. Step 2: Convert to fraction form
    148,498.58/204,909.35 = 84,840.48/x
  3. Step 3: Cross multiply
    148,498.58x = 204,909.35 × 84,840.48
  4. Step 4: Simplify right side
    148,498.58x = 17,384,607,186.29
  5. Step 5: Solve for x
    x = 17,384,607,186.29/148,498.58
  6. Step 6: Final answer
    x = 117,069.18

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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.